Since Brave is apparently absolutely terrible, is Vivaldi any better IF YOU CAN'T USE FIREFOX*?

I daily drive Firefox, but more and more websites are starting to break without Chromium, so I still have to occasionally switch to get something working. I was using Ungoogled Chromium until I realized that there was no easy way to update it when that pixel-stealing exploit came out a while back.

To be clear, I'm not talking about stock "no settings changed" Vivaldi. With that requirement, even Firefox could be called invasive! What I want to know is if Vivaldi is relatively safe to use with all the telemetry and stuff disabled in the settings and using any necessary extensions.

Thanks!