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My favorite notes app has been UpNote. Has most of what you’re looking for. Folders (and subfolders), cross device syncing, cross-platform, offline access, and search. It’s also smoother than it’s closest comparison, Zoho Notes and OneNote, each of which had stutters and microlags when I used them, especially as you accumulate more notes. There’s also a lifetime purchase if you don’t like subscriptions.
If you have a Samsung, Goodlock can edit the share sheet down to the very app, as well as favorite contacts. I’ve also been using LinkSheet (available on F-Droid) with ClearURL to open links notorious for nasty redirects, and it may help with some of these features you’re looking for.