What happens to Kernel Extensions when macOS is reinstalled? I believe there are a few kernel extensions running in "my" macOS.
On a (probably) unrelated issue, I've been asked to reinstall macOS. Will any extensions be gone if I reinstall macOS (Catalina)? I'll likely use the "online" reinstall way. Or will the kexts stay put?

Asking for a friend.
The kernel extensions stuck around.

...was what happened. (not reformatting the drive)