From my personal experience social media is a big time sink , think reddit snapchat instagram and tiktok and perhaps even youtube. I whould say youtube is the best out of the aforementioned imo as "entertainment platforms" because you can just put in in the backround while you persue a hobby (ie. drawing) but can still be a big time sink.
And you dont even realise it , you just get from work/school/wakeup/whatever the fuck you where supposed to do then go on social media and start mindlessly scrolling , its more of a reflex/reaction than anything , like if bored then social media , but because you get a steady ammount of dopamine/seretonin you keep browsing , the ammount isnt great , its just enought to make you feel "meh" and most importantly for the owners of the app, its enought to keep you there for the longest ammount of time.
Again , its more of a reflex than an addiction , i have quit reddit by getting the "delayed gratification" plug in , setting a 30 sec timer on reddit every 5 min and it seems to have worked. While i turned to youtube and grindy repetitive videogames/playing them in a grindy repetitive manner/stuff that doesnt require a lot of mental effort.
I whould usually have some sort of withdrawl when i stopped playing videogames (it was just mental: aka bad feelings like apathy) but for reddit nothing changed wherer i was browsing or not. same sensation of apathy. Just the reflex like sensation that comes from time to time by some triggers that i am not aware of (likely boredom triggers it time to time) that is usually fought off by the 30s countdown
TL:DR: Quit social media , its not as hard as you think it is,the delayed gratification plugin is a god send for it.
(Delayed gratification plugin: https://chrome.google.com/webstore/detail/delayed-gratification/ifhndomfnbmggdgodaicfebeggdphlcn?hl=en