If you have to have it, use alias email address, no phone number and use Fawkes Image Cloaking for your photo.
That’s what I did. I don’t post or follow anything and I only connect with people I met personally.
Personal opinion: It’s shitty useless service that, for the reasons beyond my comprehention, became a “standard” for connecting with people. The only interaction I’ve ever had there was - accepting invitations and refusing tons of irrelevant spam from recruiters that didn’t even read my profile. I connect with people if necessary, but always refer them to other channels (my website, mail, Signal).