Xcode 13 syntax highlighting & code completion

Are there still known issues with syntax highlighting in Xcode 13 (c++)? Some functions and keywords are colored some are not. Flashing on and off as I type. And no code completion. I've had problems with these things since Xcode 4 or something. It's totally random if it works or not. Is there something I can do to fix these things or is this never going to be fixed permanently? Considering CLion just to not have to constantly deal with this, version after version.

A search on this topic reveals that these problems have been going on for years and years and has never worked properly in any version. And most probably never will. Stop adding new things and fix the essentials first. Spent my day porting my current project to CLion instead, "It just works".

Xcode 13 syntax highlighting & code completion
 
 
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