This is great but has some "usability" issues:
1. you can't click the extension icon in the extensions bar - you need to click the clipboard icon in the address bad.
2. it leaves an extra tab with the obsidian link in it

these are minor annoyances - but give a good start.

Having it copy the whole page (and somehow convert it to markdown) is very cool and handy (for somethings), but overkill in others.

In the future, it would be extra cool to have this work like other clipping plugins to give some control (either the URL, the selection, ...)