I’ll provide some links if people want more details/reading
Testing Checklist - understanding the testcases
What is a Lubuntu 'Live Session' test
https://ubuntu.com/blog/the-keys-to-successful-bug-reporting
Ubuntu 22.04 Testing Week - Community - Ubuntu Community Hub
Call for Testing: Ubuntu 22.04 LTS and Ubuntu Flavours - Desktop - Ubuntu Community Hub
Ubuntu MATE 22.04 Beta Testing! - Development Discussion - Ubuntu MATE Community