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).
For those who are still on Win 7: Firefox (and so Tor Browser) will stop supporting Win 7 soon. Seriously, you better plan to migrate to Linux. Not-so-good privacy issues aside, everyone knows Windows is not very secure/safe/convenient anyway.