Linux is Linux. The differences largely come down to packaging and release cadence. You never really have upgrade difficulties with Arch due to the rolling release model as long as you are updating pretty regularly. On other distros, it’s not uncommon to deal with release upgrades that can be a little more involved. The other advantage to Arch is the repository and AUR. You can install just about anything with one command/click.
Personally, I think Arch is the easiest distro to use once it’s installed. I was a Debian user before Arch for mostly the same reason - it’s so easy to install software because the repository is huge. Being on Mint, you have access to a lot. Just imagine having access to even more but needing a little more knowledge to get started and that’s Arch.