While 300 MiB is not huge, it should be enough in most cases.
And note that 300 MB is recommended, while in reality you could go
even below that. I have a BIOS system with 128 MB “/boot”, with 45 MB
occupied by the images. So that’s certainly not you doing something
wrong or having a partition “simply too small”.
The issue you faced with kernel 6.7.0 is actually a mkinitcpio issue [1]
that made initramfs files grow up in size significantly.
Fortunately, this issue already has a patch already tested and merged.
[2] :)
As detected a moment ago, the current git mkinitcpio version still
does not resolve the issue. I am ending up with 5× inflation of the
image between linux 6.6.8 and 6.7.0. So the problem remains open.
From the current conversations, but please don’t take this as an
official statement or proper evaluation of the situation, it seems that
nouveau is not pulling in nVidia’s firmware blobs. A combination of that
and some issue with mkinitcpio leads to the problem.
