250
8GB RAM on M3 MacBook Pro 'Analogous to 16GB' on PCs, Claims Apple
(www.macrumors.com)
This is a most excellent place for technology news and articles.
I'm sitting at 300 mb usage after boot running Linux and at 250 mb usage on a secondary machine running OpenBSD.
Are you using a desktop environment?
in Linux I use Sway, although I have XFCE installed as a backup.
I think that what makes a major difference is disabling all the trash services that distributions have enabled by default and most users never make use of. To be fair, I disable Bluetooth too, that people find useful. But I don't think that would make that much of a difference.