https://www.cnet.com/news/android-q-best-and-worst-features-of-googles-beta-os-so-far/

Google released the first public beta of Q on March 18, the second beta on April 3 and then a security patch on April 5. The software runs on any Pixel device and gives interested Android owners a chance to check out upcoming features as well as help Google track down issues with the prerelease software and apps.

Honestly, unless it's required for your job -- or you have a spare Pixel you want to try it on -- running a beta of a mobile OS may not be the best use of your time. With Q, Google is focusing in large part on privacy, giving Android owners finer control over what data they share and creating stricter limits on the information apps can ask for. It also includes small but useful changes to its notifications and controls.