Well, Manjaro is based on Arch but Arch users don’t take kindly to Manjaro users asking for support in communities closely related to Arch.
Anyways this is what you should install: https://aur.archlinux.org/packages/thunderbird-bin

iirc you can run pamac build thunderbird-bin. Remember using AUR comes with a few risks: https://wiki.manjaro.org/index.php/Arch_User_Repository#Overview

• Multiple versions of the same packages.
• Out of date packages.
• Broken or only partially working packages.
• Improperly configured packages which download unnecessary dependencies, or do not download necessary dependencies, or both.
• Malicious packages (although extremely rare).

I think you can use AUR, but personally I would wait a fortnight for 115 to reach Manjaro repos

–Edit
A suggestion for the future: don’t mention Manjaro in an Arch community lol

OK then give me all your passwords

tbh I don’t really see the point of buying something by Microsoft just to install Linux

if it was possible, it’d be like buying an iPhone to install Android. You must’ve had a very good reason I guess.

P.S. Just checked what the form factor of a Surface Pro 6 is, and I think you’re right when you say there are not many alternatives. Also, it’s a pretty old device so it does make somewhat sense to me. Not that it matters, you can install whatever you want on your stuff lol

This is a two years old post… right? My instance says 2y

Expert in what? Witnessing things and recounting them?

Sounds rough, good thing I’m running Linux instead of Linix lol