Just save each note by selecting en masse and copying to the Downloads folder in the phone, or dragging all to a pc.
Just go to the files in your phone storage, usually Files or Storage - Documents - Downloads.
I may be missing a step there.
They appear as xxxxx. txt files this way, so I think that's fairly plain and some programs like Word Doc on Android will save them to MS Word but individually if you want, iirc.
I would save all notes as. txt file names and move them all together until you need to look for one,
I'm the dumb schmuck of the bunch and only occasionally on here. There's steam coming out of my ears.
Going forward, I've been using Color Note from year dot and they just sync across my phones but are not saved in the cloud directly. So also has limitations.
I would look to finding another Note app. Did you say Samsung?
Google Keep is very useful for saving notes, links and articles, but I understand.