In Settings > Appearance > Font size, the numeric font size is only shown while changing it. This makes it hard to return to the prior size, or to note the size for use in another vault.
Please show the current numeric font size — perhaps in a box to the right of the slider. (An undo feature and/or a thing that shows the prior size while you’re adjusting it would be nice, too).
Carefully adjust the font and move it back so you can read the number in the tooltip. Try not to mess it up!
Same request for mobile: [Feature] Show current font size in settings