The Boost for Reddit app still worked for a while after the big shutdown with workarounds, like creating a mod account or using revanced.
Not anymore, as of today, the Boost for Reddit app is completely 100% dead now.
Goodbye reddit forever, hello lemmy
Stealth for Reddit available on F-droid still works, and the only app I used for Reddit after the api wars due to no need for an account to have a custom feed and allowing local saves that posts or comments. Accountless is my favorite approach to stuff like reddit or YouTube.