Yeah, that's right.
Technology as a whole is pretty expensive here.
How much does a Xbox Series S cost? It is much faster than your current PC and should be supported for a lot of years.
If GamePass Ultimate is priced okay (f. e. by turning XBL Gold months to GamePass Ultimate), you could play a lot of games on the Xbox and your PC.
Or wait a few months until GamePass games can be streamed on PC... your PC should be fast enough as streaming client (if you have a good internet connection).