You basically have no control. It updates as many times as it wants, when it wants. You can try to adjust some timers to change the window when forced updates are rolled out, but can never tell it to NOT update something.
This is incorrect:
snap refresh --hold=forever
In general, I'd advise you to do a bit of research beforehand when giving advice...
This is incorrect:
snap refresh --hold=forever
In general, I'd advise you to do a bit of research beforehand when giving advice...
Edit: Downvotes for factual information? Really?