if i downpatch whould i lose my progress

[paper yoke]

im attempting a speedrun for hk and watcher knights are tricky but i learnt of a glitch to get past them by clipping through the roof team cherry patched it but if i down patch whould my save files be delated?

can i also downpatch on just one save file

[sterile grove]

Downpatching well affect any save file that you open while in the different patch

If you're just going to use glitches to skip the fight though, then it seems like you might as well just stay on current patch and use DebugMod