It really doesn't matter how much attention you spend on typeface and design if the way you greet visitors is with an obnoxious "are you sure you don't want our tracking cookies?" where I have to click two tiny checkboxes, followed by a user-hostile trick bold "accept all" button next to the faded "accepted selected" option.
If you really wanted to improve UX, one of those things is more worthy of attention.
That is such a silly take. GDPR doesn't force you to keep using unsafe tracking methods on your not-even-commercial website. GDPR doesn't require you try and trick me with the two "accept" buttons.
Collect metrics in a lawful way and GDPR doesn't hurt your UX.
If you really wanted to improve UX, one of those things is more worthy of attention.