Element Call URLs are not super friendly

Element Call makes it as simple as Jitsi to _create_ a new call by picking a probably-unique URL, but it is immediately translated to https://subdomain.domain.tld/room/#roomid:subdomain.matrixserver.tld which:
- dilutes the simplicity,
- introduces ambiguity and,
- most importantly, diminishes the discoverability of the simple URL (which I think is one of Jitsi's greatest usability strengths)

If I'm sharing a link in an invite, I'll very likely copy+pasta the URL from the address bar, meaning others users' first exposure to the platform won't expose them to the Jitsi-like simplicity of creating conference calls by URL only.