Confirming that the best solution would be to create a new banner with the text in the middle and larger margins around the text ☺️

Do you have a photo of the banner applied to your profile?

And their banner on my phone. The top and bottom margins expanded pretty significantly.

I'm going to borrow Strawberry Hill's banner as an example. This is their banner on my PC:

OH you know what?! Bluesky has a banner that changes size based on screen dimensions. If you tighten and centralize the text of your banner and create larger margins around the edges to compensate, maybe that’ll work??

Have you tried this technique yet?

Welcome!! ☺️

I’m so glad I could help!