Use Progressive Web Apps instead of downloading apps. Limits information leaked about you. Also has the added benefit of making a terrible experience for apps like instagram. Hard to doom scroll when the PWA constantly messes up and you have to reload.

Everyone else mentioned most of what I would suggest.

One is missing for your original problem. Localsend. Think airdrop but cross platform. Super useful if you have a mix of devices (iOS, android, windows, etc…)