I guess it is very personal.
For me, I preferably tell my family/friends “don’t use them”.
I explain people I give preference to SMS and MMS and when it’s costly (other countries), I ask to use Telegram (Fernschreiber) or Signal (Whisperfish).
Just in case I’d absolutely need an Android app, I sat up the following:
I created a second user on my phone for daily use, putting all my data there.
When/if I need Android, I switch to the “Device Owner” account.
This way I am (almost) sure Android apps will not access my data even if I forget to deny access.
Same if the app refuses to work in case I decline to share data.
So I can share everything, a bunch of emptiness!
edit:
Some report that using a second user can cause the phone to loose all data and get into a boot loop.
It happened to me ‘only’ once, right after I tried the command apkd-launcher com.android.settings.
But it only lost the primary “Device Owner” account which was empty.
Since some weeks, it now works well.
Another trick I was using to hide contacts to Android:
In e.g. this thread, you’ll find some more links and infos about Android privacy: