So all browsers are up to date and a steady stream of Debian patches are hitting the Debian repo along with updated applications from MX Linux and third party repos.
So all in all it's as good as official Ubuntu LTS releases with PPA applications despite that Debian LTS is lesser known/promoted.
I think 5 years is an ideal life time. First year is about stability and finding serious regressions that could potentially affect production. Second and third year is about maturity and added features. Forth and fifth year is just cruising, knowing that basically nothing will disrupt your Linux nirvana.
I must say that as a non-AHS user (MX-19), the AHS repo is great. It prevents unnecessary hardware related updates hitting stable repo on machines that already run well. Those machines don't need disruptive updates and extra fat added. Just Debian stability.
I think MX Linux has it figured out. If you keep doing what you are doing only upstream madness can break this distro.
If you ever feel like quitting because it's too much work, consider dropping one of the inits first and become 100 % antiX or 100 % Debian. I imagine that would reduce the workload a bit.
