3 points
Just use Edge on sites that don’t support Firefox, if you must use them. Same as how we used IE for government sites back in the day.
4 points
*
Why not use chromium or a hardened version of it? Edge is proprietary software.
4 points
2 points
*
Yes, but Edge comes with a lot more proprietary components added.
I would recommend installing ungoogled-chromium or using another hardened FOSS version of chromium instead.