They also removed the popup you get asking you to share your screen.
This exploit is for people that have the classroom.cloud extension. This was found by one of my friends.
-> During school hours, the extension will show as “Available” (blue).
-> When the teacher uses the extension, it shows up as “In Use” (green).
-> When you are not in school hours, the extension will show as “Out of hours”. (orange)
-> When “Out of hours”, teachers are unable to use the extension to do anything to your Chromebook (such as viewing it or locking it).
-> Since this extension uses your device’s clock, changing the time zone can change the status of the extension.
-> IF YOU ARE ON AN OLDER VERSION OF CHROMEOS, CLASSROOM CLOUD CAN’T BE INSTALLED! (this works on v104)
https://chromewebstore.google.com/detail/classroomcloud-student/mpkdoimpgkhjcicmhmlmgboelebflpla
https://chromewebstore.google.com/detail/netsupport-school-student/gcjpefhffmcgplgklffgbebganmhffje?hl=en
S-PScripts | https://github.com/S-PScripts
(not really me but I did the writeup for it)