I have when I called apple about problem they asked for a visual. Don't know why but I did and it was fine but it has been years ago.

That is ONLY when my head office in Dallas needs to troubleshoot, due regular security updates, or allow me to install drivers or replace my password, which is regularly a couple of times a year.

Other than that? It's something I'd never allow, although I'm sure it's attempted (and probably accomplished) without my knowledge.

I would only do it if I knew the person. Like my wife. Which is the only time I've done it.

Also Google support on my phone, which has NO financial info.

Fake repair people pay for placement on Google and pretend to be "HP printer support" or other, and ask to share screens *by downloading remote access software*

(This happened to my ex) it was a disaster. Malware was loaded.

Of course, Microsoft Copilot does this all day long (captures your screen, passwords, boudoir photos and all) which is why one should avoid Google and Microsoft like poison.