Last time I tried that, it was very limited. No paying by phone, no banking apps (and most banks require app as second factor), no proper maps with navigation and routing, no streaming music, no "work" apps like Teams or Slack, no utility apps like taxis or public transport. Even messaging apps wouldn't work well due to lack of push notifications.
Degoogled Android was basically touch display dumbphone. Which is perfect for some people who want it that way, but I like the ability to use public transport, get a cab or message people by something else than a text.
edit: I think there might be a difference between degoogled as in not registered to play store but still having play services install, and degoogled as using shim play services? I honestly don't remember.