Do filters cancel a notification? If so you can send them to a generic folder that doesn't notify you.

And if you don't want to give them an email that matters consider simple login. It's owned by proton and will give you a few addresses for free.

• Calibre - eBook manager/reader
• Gparted - disk tool
• Keepass - password manager
• VLC - the greatest video/music player
• Waydroid - run android apps

My 2c would be yes only if you're specifically seeking out the bleeding edge and don't mind or enjoy doing the neccesary tinkering.

Alsp you have time in between now and a re-install I'd highly recommended trying to do you're day to day stuff in an Arch VM for a bit and see if it works for you.

Virustotal is great to scan anything you download that does not contain sensitive information, and ClamAV + TK will work locally to scan anything that contains sensitive information (e.g. documents sent by others) or things too big for Virustotal.

Like others are saying, there's less of a need for antivirus on Linux since there's less easy entry points (e.g package manager over downloading an installer) and less (but far from 0) malware made for Linux. But we all probably download app images or get documents related to job searches at some point and I personally prefer to scan almost file that I get from a remote computer.