Ubuntu is a copy of Debian, so you might as well use Debian or Debian-forks without SystemD like Devuan or antiX. Any Linux distribution derived from Debian support .deb installation packages, which is the most popular type. This is the primary reason to use Ubuntu or Debian.

If you would like to go down the rabbit hole of all the Linux or BSD distribution available, Distrowatch (distrowatch.com) is a great place to start.

How does El Salvador compare to Panama or Costa Rica when it comes to local market adoption? Panama seems really bitcoin-friendly.

I noticed that Coin ATM Radar has 5 ATM's in Ho Chi Minh City. Perhaps their laws are not very well enforced?