Agreed. It’s an option worth considering (even EFF said so)—in fact a bridge itself could be run by something like Team Cymru (Augury), removed in TB v11.5.4. On the other hand, a VPN could collaborate with “them” so you’ll have to trust them… adding yet another unknown.
There are many ways to de-anonymoze Tor users indeed. Like Keystroke fingerprinting or Deep Packet Inspection… Usually a local ISP is not a big problem but it depends. The fact remains that even in a country with heavy Internet censorship, currently a nation-state can’t block Tor (via Bridge or Snowflake).
Tor Browser is planning to remove Google from the search engine options a user can choose: https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/41835
There some say brave onion + no JS is good: https://search.brave4u7jddbv7cyviptqjc7jusxh72uik7zt6adtckl5f4nwy2v72qd.onion/
Mullvad team seems to be considering 4 possible options:
PS: Not disgussing ddg / ddg onion too much, basically because ddg is the long-time default search engine of TB. Most TB users assume ddg is a decent, standard, generic option, esp. its non-JS version.