Fixups/clarifications for building for PPC (#4009) #671

Job	Run time
.deb packages / ubuntu:24.04	24m 8s
.deb packages / ubuntu:22.04	23m 33s
.deb packages / ubuntu:20.04	14m 19s
Release linux x86_64 static	5m 44s
.deb packages / debian:bullseye	13m 33s
.deb packages / debian:bookworm	13m 46s
.deb packages / debian:sid	12m 58s
Windows Build (vcpkg / x86-windows-static)	8m 8s
Windows Build (vcpkg / x64-windows-static)	15m 37s
Windows Build (vcpkg / x86-windows)	5m 48s
Windows Build (vcpkg / x64-windows)	6m 32s
	2h 24m 6s

Provide feedback