Even Twitterl has that: if you get a twitter link you cannot open it on the mobile app by pasting it to the search bar. I was always puzzled by that.

Nostr is still in so early dev phase that I often find it a struggle to paste npub, nevent1 etc. The workaround has been to learn by heart the path syntax of the various clients. Hopeless, in mobile apps.

Iris had implemented many of the formats working by pasting into the search bar.