I tried and it messed up ANX Camera and Even uninstalling does not work properly.
I format my phone then I used this post by @GalaxyWhy :
And all went smoothly.
As stated in the last update post this ROM includes firmware and vendor (CAF one) so it does not matter which vendor you have as it will be overwritten.
As also stated in the same post OrangeFox recovery should not be used and only TWRP 3.5.1+ will work flawlessly.
In fact I used OrangeFox to...
I used the OTA update but I had a problem because I used OrangeFox recovery (I know the dev told not to use it but I wanted to see what the problem was).
Updated went smoothly but it erased recovery. So I flashed back last TWRP and then Magisk (canary) and I was good to go.
I have no problem so far with 21/05/21 version.
I flashed TWRP 3.5.2_10 and Magisk 23 (canary version) and SafetyNet passes without any module.
I only hide Magisk Manager and use Magisk to hide itself to the apps like banking apps and Google ones.
When I click on it ("Paramètres de modification" in French) Gcam restarts but I cannot access the underlying parameters. That's why I didn't find it yesterday night (I was afraid to be dumb but that's a bug only).