Updated to iPadOS 26.1 Beta 3 this morning , but I’m having a lot of menu bar problems in Safari. Keeps switching back and forth between light and dark, and the menu bar seems to float up and down with the page when scrolling. A quick Google search indicates others are having similar problems.
I’ll report it on ‘Feedback’, but in the meantime I’m using a different browser (Brave) with no problems.