not sure what to tell you.. I installed it from aurora on my GrapheneOS. First on my Pixel 5, then on my 7a, both without issue
I tried it a few times but for some reason after I push the install button it says "GETTING METADATA"anfd nothing happens.
Please Login to reply.
Update Aurora to latest. Clear all downloads via the 3 dots menu in top right corner. Force close aurora. Relaunch Aurora and try to install Gboard again.
Thanks that worked