Hello, Seems this is not a good solution and does not solve the 'real' problem. You have suggested to turn off all of the features that make a modern smart phone or smart device "smart". I agree, it solves your problem, but not the real issue that Apple needs to address.
The real issue a "an across device latency issue". Meaning if you close the app, in this case Notes on all of the device using the same iCloud account and open the app, Notes, on a single device the problem is gone until the app is opened on a 2nd or 3rd or 4th device. As more devices open the app the problem gets worse.
Apple really needs to pay attention to this issue and solve it.
Band-aid fixes such as the one you suggested are great for the short-term, but not a long-term solution.
And Notes is not the only app affected. My 2 cents, it's an iCloud sync issue. Similar to the native mail app not syncing flagged mail, some read/unread mail, etc. Or Numbers not having the updated formulas and values on all devices at the same time. Ugh Apple. Solve it. Please.