iOS 14.5 and macOS 11.3 Airplay Issue
My iPhone 12 and Macbook 2020 could Airplay to my LG 4K TV just fine. But since updating to iOS 14.5 and Big Sur 11.3 Airplay is just glitchy. It works, it connects, but it's so out of sync and glitchy that it's basically unusable. Can't get through 60 seconds of a Fitness+ workout without it skipping or lagging.
Just to reiterate, Airplay worked fine from my Macbook to TV prior to the update, there is nothing wrong with the TV here it is brand new and supports Airplay 2. Unfortunately these updates have rendered Airplay unusable.