I think the only way out is cold turkey. The number of conversations my wife starts with telling me about some distant acquaintances recent vacation (as seen thru IG) is distressing.
My "social" internet use is more hobby based - forum/reddit hobby focussed content.
And even she does some doom-scrolling though news sites. She claims to know it's mostly nonsense, and then says she has to do it to know what's going on. I try not to point out the contradiction too much, because she does limit it pretty well.
That is - you don't need to read 18 different articles about how Pete the drunk defense secretary (and probable assaulter/abuser) likes to text on his personal phone about war plans (including to non-govt officials), but when you see the article pop up in enough of the less biased news places you browse, you get the idea that it's true & bad.
Generally I find business news like FT/Bloomberg/CNBC and (if you ignore the opinion section) WSJ are best for the less-biased news sourcing.
I also browse a bit of known-biased news on each side to understand what each side is going to talk about (and makes it clearer what each side may be BSing about). This is helpful so I don't get jumped by some of my more left/right wing nut social circle when discussing a topic with a known-false partisan argument (as 99% of people just repeat what they see in their-sides news).