I generally agree, but the same thing also happens to Mullvad exit nodes (though not to the same degree.) Imgur is perpetually "over capacity", breaking images across multiple websites. Twitch tells me "your browser is not supported, try Chrome or Firefox" when trying to log in on Firefox. Netflix blocks all regional content, etc. Not to mention the constant Cloudflare captchas. I once had to use Tor because Mullvad was blocked (creating a foreign Steam account)
Google Search comes to mind as the most Tor-hostile website though, and that allows Mullvad just fine.
The point is not opsec but speed, under the GP's assumption that Mullvad exit nodes have better reputation than tor exit nodes. Not sure if the case, I don't use Mullvad.
I was talking about tor + mullvad where you first connect to tor then mullvad instead of obscura for connecting to a website where mullvad is allowed and tor is blocked like google(google's basically useless in tor thousands of captcha and then sorry mate we can't)
so I would argue that tor + mullvad is still a worse opsec than tor and it still has roughly the same / slightly worse speed with tor.
but I would also argue that tor + mullvad is a better model than obscura + mullvad for opsec but not for speed.
TLDR: Don't use tor with vpn's unless you are forced to (like website block , because then you are kind of forced to reduce your opsec a little bit)
And 50% of the time it works every time...
A lot of things simply don't work if you're using tor. You get blocked, you get blacklisted, accounts get terminated, and so on.