"luckily all my projects are now EOL as I am retired."

I doubt that everything you ever worked on is end-of-life. Some of it is still out there...

Correct, I have thousands of tank temperature controllers still out there, still working fine where the End Of Life was 3 years ago. EOL just means support for spares and software updates cannot be guaranteed past that point, and is mainly tied to the EOL of the specific micro-controller used.

Better have kept those environments.