Does the general typing latency not bother people? There's a noticeable delay between pressing a key and seeing a character appear. Other apps, Electron-based even, don't seem so slow. But then you type something like a/b and you realize why it's so slow. About half of the things a technical person might type while writing notes or documentation result in some "helpful" popup which must be canceled. I have a long laundry list of usability issues, but from all appearances their company has been growing and selling but not making good on the promises of addressing feedback.
My team and I use google docs to get the initial collaborative concepts down, and then one of us manually creates a Notion page with the more permanent result. I sincerely wish to find a collaborative writing/spreadsheet/drawing suite that was open source (paid service even) that could come close to the utility of gdocs.