I know this has been said before but I really hope the preview button can be brought back on mobile. One of the forums I use doesn’t have enough community push to install the component workaround.
It’s kinda flashy, and flashes blue when expanding due to the Chromium-characteristic blue highlight(?).
Besides that I need to tap the minus button twice to minimize when keyboard is launched. This might be caused by this glitch in this video frame (seen after tapping minus button the first time), where the URL bar jumps up to the position of minus button for unknown reason:
