I’ve used the same Arch install from about 2018. Regular updates, several AUR packages (pikaur), a migrate to md raid home and root, encrypted root/home, major hardware upgrades; all with no issues.
The removal of python 2 was the hardest thing I’ve had to handle; but that really wasn’t difficult with understanding of the package manager.
This is how a toroidal transformer is built. https://en.wikipedia.org/wiki/Toroidal_inductors_and_transformers
MEMS have done wonders