That's annoying! I'm using Graphene and I just installed KDE Connect from F-Droid to test, which didn't trigger, however it did bounce me for using Heliboard. Changing to default keyboard and reloading worked, ie it can only see my currently active one.

Using Shelter to set up a second profile, or the new Private Space feature on 15 may help provide isolation.

Halifax/ Bank of Scotland/ Lloyds does an integrity check that rejects Graphene or LineageOS phones completely.

Not OP but fully agree - I don't enjoy video content so my personal block list would filter youtube.com and any of their shortened aliases like youtu.be and I personally would also filter x.com as if you accidentally click it you'll likely get the you need an account to view this nonsense

Do you use docker for anything else self hosted? You should give it a try. I literally had not heard of grocy till I read your post but I self host other things with docker. I googled them, visited their github looked at their docker instructions - theirs downloading a docker compose file and lsio's which gave a run option rather than compose.

I pulled up an ssh to my server from my phone and literally entered the run command from here just modified to have my preferred storage path.

docker run -d \
  --name=grocy \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Etc/UTC \
  -p 9283:80 \
  -v ~/.config/grocy:/config \
  --restart unless-stopped \
  lscr.io/linuxserver/grocy:latest```

I then opened my browser to http://ip:9283 and was prompted with a username and password. I googled and found out the default is admin/admin. I now have grocy temporarily running on my server. If I want to run it permanently I'd include it in my existing docker-compose stack or create a new one with just it in it. 

I understand it's frustrating and you may not want to use grocy after all and someone might have a good alternative, but getting to terms with docker will make your self hosting life much easier - it took me longer to type this post than it took me to get grocy up and running with docker.