Literally the notes app?
If you’re just interested in moving text back and forth, you could use any intend encrypted messaging app.
Signal, signal desktop
Session
Anything where you can pass text messages
Signal’s “Note to self” is an option.
Full disclosure: i use AirPlay already so I might already be an ignorant hypocrite but I just can’t seem to figure this out without y’all’s help 😭
I have found that the Universal Clipboard works well for me
Also, if you are logged in to iCloud and you copy text on your iPhone, you can paste it on your Mac. And vice versa.
for short text iMessage is what I use, it’s instant and URLs are clickable and I always have imessage on on both machines
Can you send an imessage to yourself?
I don’t know if you count airdrop as continuity, but you could try that. Also, you should be able to iMessage yourself
Bitwarden also has send feature that really comes in handy.