Links with anchors are overridden by back-to-top behavior

Hi all. I'm trying to use a pagination link like this: https://sitename.com/slug/?page=2#anchorname

When I use that URL in a link created by the gutenberg editor, it works briefly...the new page is displayed, positioned down to the bottom where the anchor is...but then it immediately jumps back to the top as if a scroll-to-top button was clicked.

I've tried this with the Customize > Layout > Footer > Back to Top Button option both enabled and disabled, and it behaves the same both ways.

How can I keep the new page displayed at the anchor without scrolling back up?