it’s available on all major platforms with a native client

Yeah, but all native desktop clients are still more or less in alpha and have no feature parity with Element. Can you recommend one, I am currently using nehko and it is okayish but still very much under development?

what’s wrong with the user experience of Element

To mention just a few obvious issues: Element on desktop is very slow and heavy as it is an Electron app, search in encrypted rooms does not work, if I scroll through longer chats the scrollbar becomes incredibly jerky, on mobile notifications sometimes don’t show up. And there are many more things that just need more polish, I am not an UX designer so I am not that good at pointing my finger at all UX issues but I can still feel them.

I sincerely hope that given a little more time things improve and I can finally recommend matrix to my non technical friends.