(and it is very good for the phone battery life, one more thing you less take care about after such move)
What I do instead: send pictures to friends/family via various messaging platforms, get news via RSS (self-hosted Miniflux), run pinchflat to download youtube videos from a very select group of channels (no comments section, no suggested videos, sponsorblock to remove the annoying bits), and use a lot of the extra time I was wasting to read, workout, and engage in my various hobbies.
Some other helpful things I do with my Android phone: set to grayscale, uninstalled any time wasters (youtube, news, games), use an app called BuzzKill to limit distracting notifications (some notifications disable during work hours, some apps have a cooldown so they can only notify once every 15 minutes for example), setup notifications every 5 minutes when using an app that could be used for time wasting (browser mainly). These time wasting alerts (done via Tasker) are a nice reminder of time wasting as the amount of time can easily go unnoticed.
PS I also don't feel like I have a boring life. I have many IRL friends, hobbies, and a close-nit family. All these steps have aided in finding fulfillment with what I have.
Other than direct contact I like to also have more casual and indirect interactions. Instagram works well for me here, I’m curious if anyone is doing similar things with any other apps.
But sure, if you feel that instagram or social media is causing you more problems than benefits, absolutely do something different.
Delete all doomscrolling apps. They are not a necessity. You will live your life just fine without them. Just don’t use anything at all.
If there are people you wish to keep in touch with, contact them using a direct method. If you have work you wish to publish, use a normal old website with an RSS feed.