If you don’t need LinkedIn, don’t use it, I can’t think of any other “social media” platform that’s so cringy and weird like LinkedIn, there’s something off putting about it that no matter how I promise myself to be active there, I stop after one day. If you need it however, just get a burner phone, that’s what I do, I have a second number for all these kind of stuff, my personal never shared in any online service.
Twitter used to be my way to keep in touch. Alas.