The master list in that thread is compiled from apps that have been tested by either me or someone else here, and reported to work well enough, or from Purism’s previously published lists (not necessarily tested by me or someone else here), or from @linmob’s Linux app lists. (Links to Purism’s and @linmob’s lists can be found toward the bottom of the link you posted.)
As a rule, I steer clear of Youtube (even using a privacy-friendly app to access it) and every other Google product, unless I have no choice (reCAPTCHA, etc.), and excluding my degoogled Android (which still has to connect to some Google server). So I have no experience to share…
… other than this, which I tested very briefly once upon a time.