I wish messengers like Telegram had a feature for a pop-up note that expires. This would also greatly help neurodivergent people. Just a note that pops up any time I open that particular chat, that deletes itself at a set time - Or when I click a button to delete it if I didn't set a date and time.
Use Case example 1: Friend, or I, don't have time to discuss a particular thing. Add note. Next time I click that friend, it pops up "Remember to discuss X". Manaully delete with delete or dismiss button, or if still not time, "ok" it and it'll pop up again next time I click that chat.
Use Case example 2: Friend says she needs a little space, says to leave her be for a day. I'd add a note that pops up any time I click to message her that says "Reminder - Give space till 8/5 noon", and set it to self delete at that time.