sarbogast

Yes, I am able to add a link via the HTML edition mode. Now, indeed, when I switch to the Twenty Twenty-One standard theme, the buttons are there. So it seems like the Grizzly theme I’m using interferes that the editor. That’s bad. I’ll try and see how I can fix this. Thanks for your help.

Here is what I see.
No link button either.

This is a dedicated server. I have full control over it. I simply used certbot to generate and configure my SSL certificate on Apache.