JSFiddle - React, Tailwind, and code Playground

HTML

<html lang="en">
    <head>
        <!-- Stylesheets -->
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
        <link rel="stylesheet" href="https://cdn.datatables.net/1.10.25/css/dataTables.bootstrap.min.css">
      <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/datetime/1.1.1/css/dataTables.dateTime.min.css"/>
      <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/responsive/2.2.9/css/responsive.bootstrap4.min.css"/>
      <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/rowgroup/1.1.3/css/rowGroup.bootstrap4.min.css"/>
      <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/select/1.3.3/css/select.bootstrap4.min.css"/>
        <!-- Scripts -->
          <script src="https://code.jquery.com/jquery-3.5.1.js"></script>
          <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
          <script src="https://cdn.datatables.net/1.10.25/js/jquery.dataTables.min.js"></script>
          <script src="https://cdn.datatables.net/1.10.25/js/dataTables.bootstrap.min.js"></script>
          <script type="text/javascript" src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
          <script type="text/javascript" src="https://cdn.datatables.net/1.10.25/js/jquery.dataTables.min.js"></script>
          <script type="text/javascript" src="https://cdn.datatables.net/1.10.25/js/dataTables.bootstrap4.min.js"></script>
          <script type="text/javascript" src="https://cdn.datatables.net/datetime/1.1.1/js/dataTables.dateTime.min.js"></script>
          <script type="text/javascript" src="https://cdn.datatables.net/responsive/2.2.9/js/dataTables.responsive.min.js"></script>
          <script type="text/javascript" src="https://cdn.datatables.net/responsive/2.2.9/js/responsive.bootstrap4.js"></script>
          <script type="text/javascript"...

CSS

tr.selected {
      background-color: #acbad5;
}
h1 {
  text-align: center;
}
 h5{
     text-align: center;
     font-size: 40px;
}
 .dataTable > thead > tr > th[class*="sort"]:before, .dataTable > thead > tr > th[class*="sort"]:after {
     content: "" !important;
}
 .right {
     float: right;
}
 .toolbar{
     float: left;
}
 .FilterStuff>div{
    float:none;
}
 .dataTables_wrapper .FilterStuff .dataTables_filter {
    float:left
}
 .title {
     position: relative;
     background-color: lightgrey;
     color: #fff;
     border-radius: 0px;
     padding: 20px;
     font-size: 150%;
     border: 1px solid black;
}
 .btn{
     padding: 4px 12px;
     margin-bottom: 0;
     font-size: 14px;
     line-height: 20px;
     color: #333333;
     text-align: center;
     text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
     vertical-align: middle;
     cursor: pointer;
     background-color: #f5f5f5;
     border: 1px solid #B7DDF2;
}
 .table th {
     text-align: center;
}
 .table td{
     padding: 10px;
}
 .dtrg-level-0::after {
     text-align: center;
}
table.dataTable tbody td.select-checkbox,
table.dataTable thead th.select-checkbox {
  position: relative;
}
table.dataTable tbody td.select-checkbox:before, 
table.dataTable tbody td.select-checkbox:after,
table.dataTable thead th.select-checkbox:before,
table.dataTable thead th.select-checkbox:after {
  display: block;
  position: absolute;
  top: 1.2em;
  left: 50%;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
}
table.dataTable tbody td.select-checkbox:before,
table.dataTable thead th.select-checkbox:before {
  content: ' ';
  margin-top: -6px;
  margin-left: -6px;
  border: 1px solid black;
  border-radius: 3px;
}


 .btn:hover{
     color: #333333;
     background-color: #e6e6e6;
}
 th {
     font-size: 14px;
}
 td {
     font-size: 12px;
     text-align: center;
}
 div.container {
     min-width: 980px;
     margin: 0 auto;
}
 body {
     font: 90%/1.45em "Helvetica Neue", HelveticaNeue, Verdana,...

JavaScript

var data = [
        {
            "AssignedTo" : "Beerus Dev",
            "Status": "In Progress",
            "Priority": "(1) High",
            "TaskTitle": "Create the Task List",
            "StartDate": "08/20/2021",
            "EndDate": "08/27/2021",
            "PercentageComplete": "23%",
            "AssignedToId" : 32
        },
        {
            "AssignedTo" : "Beerus Dev",
            "Status": "In Progress",
            "Priority": "(1) High",
            "TaskTitle": "Figure Out Data Not Saving",
            "StartDate": "08/20/2021",
            "EndDate": "08/27/2021",
            "PercentageComplete": "23%",
            "AssignedToId" : 32
        },
        {
            "AssignedTo" : "Krillin Dev",
            "Status": "Not Started",
            "Priority": "(2) Normal",
            "TaskTitle": "Create the Task List",
            "StartDate": "08/20/2021",
            "EndDate": "08/27/2021",
            "PercentageComplete": "23%",
            "AssignedToId" : 24
        },
        {
            "AssignedTo" : "Krillin Dev",
            "Status": "In Progress",
            "Priority": "(1) High",
            "TaskTitle": "Finish Security Training",
            "StartDate": "08/20/2021",
            "EndDate": "08/27/2021",
            "PercentageComplete": "15%",
            "AssignedToId" : 24
        }
];

$(document).ready( function() {

    var thisUserID = 32;
    $.fn.dataTable.ext.search.push(
        function(settings, searchData, index, rowData, counter) { 
            //var tableUserId = searchData[8];
            var tableUserId = searchData[7];
            var api = $.fn.dataTable.Api('#taskTable'); 
            //var api = $.fn.dataTable.Api('#completedTaskTable'); 
            console.log(thisUserID, tableUserId, thisUserID == tableUserId)
            if(thisUserID == tableUserId) {
                return true;
            }
            return false;
        }   
    );
    function filterGlobal () {
       ...