You shouldn’t be navigating by mouse in the first place, though. Either of these methods works:

• Use Ctrl+Tab/Ctrl+Shift+Tab/Ctrl+PgUp or PgDn
• Type "% " in the omnibar (note the space) and start typing any part of the name of the tab you want to jump to (like the name of the video), then hit Tab and then Enter

You can use AutoHotkey or some other tool on your OS of choice to map these to more ergonomic alternatives if that may be easier (for example, I mapped Ctrl+Q to "Ctrl+L, % " to invoke the second way automatically). I can help with AutoHotkey code if you’d like, in !ahk@programming.dev.

If you have that many tabs that it’s difficult to avoid the buttons, then you may like this second method anyway, since that tab-jumping method makes it totally needless to visually track which tabs are where in the tab strip. You could have a hundred tabs and not know where they are; just use "% " and part of the tab’s name to jump to it.

TL;DR: I couldn’t figured out how to hide those interactive buttons either, haha.