> I use abd to delete/disable every unnecessary useless app and leave them with just 3 apps. Text, phone and contacts. No data or wifi either. A dumb smart phone. Much better than the ageist demeaning Doro big button phones.

I've used an MDM with a kiosk mode for a similar effect. I won't recommend the one I'm currently using because the kiosk launcher crashes every couple of days; still looking for one that works well, and I've tried most of the ones I could find that weren't "call us for pricing"

I don't own a phone that LineageOS supports or I'd try it.