Easy formula for multiple countrows filter

Hello, I tried to find a solution for the following question in the community, but I can't transfer the shown solutions (Please be lenient with a beginner...). I hope there are users here who solve this in seconds:

This measure is ok:

1User = COUNTROWS(FILTER(Rawdata,[NumberOfUser] = 1))

The measure should be expanded like this:

1User = COUNTROWS(FILTER(Rawdata,[ NumberOfUser] = 1  or Table „Rawdata" Row "Workshop“ is not empty))

Thanks for help!