As someone without a Cuckstagram/Snapchat account, i can reliably tell you guys that unless you've completely dropped out of society or you just don't give a shit anymore, not having a Cuckstagram account is the equivalent of social suicide. After some looksmaxxing, i look "just fine", normies treat me like an actual human being, and I worked quite a lot on my social skills, so now I easily get acquainted and mingle with them. All of that time and effort goes right into the trash when they ask me "What's your instagram account?" and i have to tell them i have none. In this exact moment, they instantly label me as an "antisocial" or "sperg" and my social credibility goes to 0. This little slip-up will cost you many opportunities in life, you'll fail to connect with normies and socially integrate in new environments, and that "antisocial incel sperg" label will also fuck up your life for good, since HR are overwhelmingly populated with normie women.
If you still haven't given up on your lfie yet, Looksmaxxing + NTmaxxing + Socialmaxxing is absolutely necessary to keep a good image, and having at least a well-maintained Instagram account is absolutely necessary (as an addendum, LinkedIn is the professional equivalent of Instagram).