Go to your phone homescreen and look at the app dock (the bottom row that contains some apps and stays the same when you switch pages).
Which are yours? Any FOSS apps?
In my case, they are FDroid, Signal, Threema, Firefox and the defaul Samsung camera app. So, 80% FOSS…
IronFox (web browser)
Fossify Caller app
QUIK (SMS)
Molly (Signal)
Libretube (YouTube)
Thunder (Lemmy).
Oops, all FOSS! :)
The only proprietary apps that see regular use on my phone are my banking app and Spotify.
Why Molly? Doesn’t being unofficial mean always being a step behind in security updates?