Isn't google auth an OTP service? Proton Pass also supports that btw! Haven't heard about Ente before and what purpose it replaces a gallery with, but again you can upload and view photos to Proton Drive as well. Although I have not yet tried it myself because I like to keep them local.
Kagi is one of the search engines I actually trust, but it is paid. I can give you trial if you want to try it out. Oh and it being US based might also be drawback.
