Button block link not opening new page

Using the block editor, I put in a button block with a link to another page on my site.
https://www.my-site/my-page/
when I save the page and click on the button, nothing happens.

When I look at the “Link settings” > “Link rel” I now see
https://www.my-site/my-page/ noopener noreferrer
Is this “noopener” he problem?
“noopener” is exactly what the button is not doing. When I click on “my-page” does not open. Nothing happens.

What does “Link rel” mean?
Is it “relative address”?
Should I put in a shorter URL like
/my-page/

I tried removing noopener and noreferrer but they reappeared
What are they for?

I’m using the latest WordPress: version 5.5.3
Using the Atomic Blocks theme
I am editing a private page. I want to get it looking good before it goes public.

I liked the look of the button, but I am now going back to just using an ordinary hyperlink. The hyperlink works fine.