GNOME because it works out of the box like GNOME

Following the post to the collabera post lead to this patch: https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=91b98d5a6e8067c5226207487681a48f0d651e46

Weird, but good that you found out!

Are you sure the right partitions have enough space? On my tumbleweed the installer made several subvolumes i think

Alternatively you can configure a hotkey in the GNOME Settings, or the equivalent for other DEs, to execute a bash script or anything.

No. It’s only about the kernel itself, not Linux Systems(aka Distributions).

Earlier the kernel did only consist of C code, but for some time now the option to develop parts of the kernel in Rust is being worked on. In the end it both compiles to native machine code. The running kernel does not require the Rust toolchain to be present.