With this tool you can convert trx text results into an readable html report.
dotnet tool install -g Samhammer.TrxToHtml
generate trx results (*.trx) with dotnet test and then just execute trx-to-html in the same/parent folder to generate report (TestResults.html).
dotnet test -l trx
trx-to-html
to list all options use help
trx-to-html --help