Yes, there are several bugs in the new editor. MS is working on it. You can post/search Microsoft Q&A
to see the issues. For now I think people have best success witching to View Markdown
and putting it in by hand - example. If you want to use the rich text editor then just type the link text in without brackets and then add the link using the toolbar.
Is there any bug in the richtext editor when pasting the URL?

Reza Aghaei
4,966
Reputation points MVP
Here is an example: [http://example.com/]
1 answer
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Michael Taylor 56,946 Reputation points
2023-01-30T15:41:03.8166667+00:00