Hotel points work like this:

You pay directly - you get the points
You don’t pay directly - you don’t get the points most of the time. You may get stay credits but no points. If you do get points it’s likely an anomaly and won’t happen all the time.

It even works this way for business travelers. If you pay directly and then expense it to your company. You get the points. If on the other hand you go to a conference, book and pay for the hotel through the conference (i.e. you don’t book/pay directly) then you don’t get the points.

There are some exceptions of course but the above are the general rules.