Oh nice timing - I literally just put together a guide on this! It walks through all the ways people actually track course updates without going insane refreshing a million tabs.
Covered stuff like browser extensions, some self-hosted options, RSS workarounds, even sneaky API tricks. The whole deal.
Check it out here 
Automatic Course Update Alerts - Free Tools to Monitor Udemy, Coursera & Any Platform
Should save you a bunch of headache if you’re trying to stay on top of updates without doing it manually.
!