EpiqEDEM 😎 Well, I'll be... this is the first time in years I can't find someone. I have never seen any evidence of shadowbanning but not being able to look into it further I can't find the issue. My advice would be to reach out to support and ask them to find you and send you a screeenshot of your tile in search.
I know you said in your original post that "I don't mean account restrictions, suspension or blocking. Yes, Upwork does shadow-ban!" but later in another post you mention "This has to do with recent account holds." So my educated guess is that there is an issue with restoring your profile to the search after it was restricted from an account hold.
Still, your profile is public as I was able to see it and so, if you're struggling, it may be worth looking at your proposals rather than just your profile being visible on search. Your profile being in search would only result in invitations if anything so submitting proposals is actually where the bulk of your success would be coming from.
