Like most others, I use Scrivener for long-form content like novels.
For short-form content and general notes, I was one of those people that bounced around to a million different apps (I tried Apple Notes, Bear, Upnote, Evernote, OneNote, Craft, Obsidian, Notion, Logseq, Roam, etc.) but I just ended up landing on Apple Notes. Every app had its drawbacks, but the biggest drawback of all was the constant switching. So many hours wasted testing word processing software.