I switched to second-hand Android phone from my Nokia C3 last year, never used a smartphone before that. I struggled a little bit with easy accessibility of browser / telegram / instagram, so I found a way to make a phone a little dumber.
1. Buy an Android phone (you can probably make the same thing on IPhone with jail-break, but I don't have any experience).
2. Remove all social media apps: Instagram / Twitter / whatever app you struggling with.
./adb uninstall --user 0 com.android.vending (Google Play Store)
Some functionality in some apps won't be available, if it requires redirect to the browser tab / Google Play Services, but it's a price to pay for having dumb-phone functionality on the smartphone.
You can still install Google Play once in a while to update apps via
1. Buy an Android phone (you can probably make the same thing on IPhone with jail-break, but I don't have any experience).
2. Remove all social media apps: Instagram / Twitter / whatever app you struggling with.
3. Download adb https://www.xda-developers.com/install-adb-windows-macos-lin... and execute those lines
./adb uninstall --user 0 com.android.chrome
./adb uninstall --user 0 com.android.vending (Google Play Store)
Some functionality in some apps won't be available, if it requires redirect to the browser tab / Google Play Services, but it's a price to pay for having dumb-phone functionality on the smartphone.
You can still install Google Play once in a while to update apps via
./adb install -d --user 0 COM_ANDROID_VENDING_APK_FILE
update/install new apps and then repeat step (3) from above.