Need To Change Privacy Strategy - Recommendations and BlackFriday

Hello everyone,

There are a few basic things in my current setup that I'm not very comfortable with. Since we're on blackfriday -> cybermonday I think it would be a nice season to make some changes [cloud - e-mail - calendar - cloud - DNS] Here's the deal:

E-mail / Calendar Strategy

• Using tuta for more than 2 years but I still rely on my gmail address for many things; issues with Tuta:
• troublesome to export/make backups (worse since I have many folders, would be folder by folder)
• not a fan of not having an e-mail client on my desktop (not issue in mobile phone), also don't love the calendar

What would be ideal:

• a nice mail provider, possibility of easy backups, possibility of using e-mail client (this one is not a hard requirement)
• Calendar, end-to-end encrypted: a hard requirement since I store some sensitive data there. Should be easy to see on mobile (e.g.: dedicated app); for desktop it does not matter much to me I guess the calendar requirement excludes nextcloud and most providers, as well as calDav stuff and similar
• I wouldn't mind if it would be 2 products working side by side if no alternatives are available (calendar and e-mail, but not ideal)

Backups and Cloud Storage (for redundancy)

• I have 1 cold backup at home, another at someone else's home (both encrypted) but to be safe I'd like to also have a trustworthy cloud Cloud: -end-to-end encrypted or -> next bullet
• compatibility with cryptomator is a big plus (though I want to avoid Apple/Google/MS/Dropbox)
• possibility of mounting the cloud storage as drive on my computer (not hard requirement this one)
• could be 2 products side by side (not ideal though): a storage solution for entire backup (wasabis and stuff) and a cloud solution (day to day usage)

DNS for filtering

I'd like a solution to have all traffic filtered (malware, ads) system wide on my laptop/desktop I have used adguard in the past; open to all other possibilities. I also have mullvadVPN; wouldn't using a different DNS defeat the purpose of the VPN? Or when VPN is on, the DNS is always the one of the VPN? Possibilities:

• controlD (i have seen people vouching for it)
• NextDNS (system settings)
• MullvadDNS (system settings)
• adguard desktop app

Malware / Virus / etc

I have a linux desktop and macOS laptop. My doubts are regarding macOS. I've seen so many new antivirus ads that it almost makes me think that I should have one. I have malwarebytes installed for occasional runs and CleanMyMacX (I have doubts regarding its security claims - I use more for system management)

• Should I opt for an antivirus program? If so, which would be advised intego is showing up all the time weirdly)

This time of the year is when I can gear up, since financially I haven't been at the top.

For those that will answer, thank you so much in advance!!!!