I haven't had any major issue with Firefox's UI lately, as long as they can let me show the menu bar. However, the scrollbars since v98 are a big issue, they n

I haven't had any major issue with Firefox's UI lately, as long as they can let me show the menu bar. However, the scrollbars since v98 are a big issue, they no longer follow the system UI (I'm using KDE Plasma on Fedora) and sometimes they take the same color as the web page background, making them invisible. Unfortunately there doesn't seem to be an alternative other than the n-th Chromium-based browser.