Understanding is fine, but it’s a UX issue that app devs need to account for. Think of web browsers, if I copy a hyperlink from a webpage in chrome and paste it into the address bar in Firefox, or into another webpage that someone using Safari clicks, it loads the content the user is trying to access. Whatever good reasons there may be for different nostr event ID formats, it kills the user experience when moving between apps, and moving between apps is touted as Nostr’s superpower.