Experience Site datatable workaround

controller.js

import { LightningElement } from 'lwc';

const LINK = 'link';

export default class ExampleComponent extends LightningElement {

    columns = [
        {
            label: 'Label',
            fieldName: 'name'
        },
        {
            label: 'Name',
            fieldName: LINK,
            type: 'url',
            typeAttributes: { label: { fieldName: 'name' } }
        }
    ];

    data = [
        {name: 'nameValue', Id:'a091w000005CxjCAAS'},
        {name: 'nameValue2', Id:'a091w000005CxjCAAS'},
        {name: 'nameValue2', Id:'a091w000005CxjCAAS'}
    ];

    communityURL = window.location.href.substring(0,window.location.href.search('\/s\/'));

    connectedCallback(){
        this.data = this.data.map( (row) => {
            row[LINK] = this.communityURL + '/s/my-projects-details?c__rowId=' + row.Id;
            return row;
        });
    }
}

markup.html

<lightning-datatable
    key-field="Id"
    data={data}
    columns={columns}>
</lightning-datatable>