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
There’s an incoming patch from revanced that will fix a few of the reddit clients including boost. Check revanced manager for new patches in the next few hours and you can patch boost for reddit and get it working again.
https://github.com/ReVanced/revanced-patches/pull/3234