Downgrading gcc in Arch @drivers: gcc sufficed OK»»»NOT the gcc-libs package.

Sole gcc - Big NV. modules compiled OK (but Linux somewhat is sometimes VERY similar to Windows - some big bugs below)

Pacman „listing” after all operations:

pacman -Qs gcc          gives:

local/gcc 11.1.0-3 (base-devel)
    The GNU Compiler Collection - C and C++ frontends
local/gcc-libs 14.2.1+r32+geccf707e5ce-1
    Runtime libraries shipped by GCC

•Vers.: (14.2.1+r32+geccf707e5ce-1 -> 11.1.0-3)

Not to trust ccache... Linux documentation is poor as explaining ability/scientificness (see PM entries).

•Linux, as Windows, contains bug after bug.
Only cause[d] „this is America”??
For kernel??? If/while they can't decide which plugin set to use!!

•Assume (by enumerative induction reasoning) they can't do it well AGAIN / „EAGAIN”.

PM has big bugs, Arch Linux has CD-ROM bug.

And, the downgrade is better than downgrader definitely. Only good side of downgrader one is that restoring is done automatically (if logs are not cleared).