Normal Obsidian:// URL not working

[merlinuwe]

Normal Obsidian links do not work.

I have read, that app:// are obsolete since Obsidian 1.2.8:

Breaking changes Removed support for app://local URLs. These were reported as a potential vulnerability when using iframes.

But this is a normal obsidian link which should work:

obsidian://open?vault=Obsidian&file=BBZ%2FUnterricht%20CTA%20SuS%2Fattachments%2F2023-03-21-CTA%20Excel%20Tabelle%20mit%20Zeilen-%20und%20Spaltennummern.xlsx