Killcurly
Update: Further info here https://blog.bypassi.com/_/killcurly/ -- killcurly, a Securly bypass (Found by zoroark#4283) (Tested and works on ChromeOS 107):
Visit chrome://settings/signOut (the O must be capital) and click the blue button. If this is "blocked_by_administrator", DM SprinkzMC#8421 for an alternate URL.
Visit chrome://restart. Alternatively, you can go to the Securly details in chrome://extensions and click "Allow access to file URLs" or just use chrome://kill on one of its extension pages. Securly will now reload and be broken.
Go to https://tinyurl.com/addsession and add your school account back (personal accounts may even work for some people).
This has to be repeated each time you sign out of your computer. Feel free to test this for other extensions too.