If you have Pixel 6 and can't wait for the rumored patch tomorrow you can instead opt-in to QPR3 Beta also with the March 2023 patch level. Read the release notes and "top open issues" to decide for yourself if it is worth being stuck in beta until June.

"March 20th" is rumored from a screenshot of a customer service rep. Even if it is made available to the public tomorrow, there there is no guarantee you'll get it immediately from OTA as providers also need to approve of updates.

The beta known bugs don't look too bad to me.

My primary concern about being stuck in the beta stream until June would be it is time consuming to apply patches multiple times per month. Otherwise I'm not too concerned about running the beta and seeing new features months before other people.