When the sidebar expand on hover option is turned on, the 'X' to close tabs appears at the end of the tab title, this means after hovering on the left you have to move your mouse all the way to the right to close the tab, if you go too far, the sidebar collapses meaning yhou have to try again. For ease it would be better if the X appeared somewhere around the icon or there was some ease of close feature.
Thank you 🙂 just a pet peeve of mine