The message is coming from the most recent update to the browser checker in Canvas, which mistakenly identifies LockDown Browser as an older version of Chrome even though LockDown Browser is supported.
I have the same issue with it saying I need to install the OEM browser. My version is updated and I uninstalled and reinstalled. I cant access my exam and the test page doesn't work.
LockDown Browser OEM is different from the LockDown Browser used with your school's Canvas. That's a special version of LockDown Browser used by publishers such as Pearson, and it can only be launched from a link in a regular browser like Chrome or Firefox after logging into the publisher site. You should see the download link for the publisher's OEM browser when you go to take the test on the publisher site.
