does PXE booting need /linuxrc in tc13?

[nick65go]

When PXE booting a "modern" kernel, like 5.15+, does the kernel always use file /init (file)? Or does it still needs / asks for /linuxrc file?
I mean if /linuxrc (file or link) is missing, is /init file sufficient for all the cases?
I learnt that /linuxrc was used for RAM-disk booting (like PXE also), but our tc is initFS booting (not ram disk blocks, but tempFS 4K cache).
I try to understand why we have /linuxrc link to /bin/busybox in kernel ver 5.15.

[curaga]

It's just a remainder symlink, not used in initramfs, and could be deleted.

[patrikg]

You can enjoy watching Rob Landley taking about the naming, and so on regarding your question.

Here the link:

https://www.youtube.com/watch?v=Sk9TatW9ino