@drnewbury Old Opera (Presto based) used to minimize the active tab if you clicked on it, which would let you switch between two tabs just by clicking rather than double-clicking. Unfortunately Blink doesn't support minimizing tabs ...
@cherenok thanks, I can confirm that Samsung devices running android 10 or higher are all affected. I tried chrome, brave, vivaldi and they all worked fluently only after setting the surface flag to disabled. Without it those browsers are pretty useless. Samsung internet doesn't have flags and firefox has no flags in release but has in developer preview. This is really bad. A simple tiny switch can make a browser utterly unfunctional. And guess which browser all these years was never affected? It starts with an S and ends with ...sung.