DeletedUser301 As @DeletedUser115 said, people do test releases. What you may not necessarily realize is that the second to last update brought us Android 13's QPR3. This next release that you're commenting on right now (2023061402) is the second release that was made in the same day to address issues found during alpha/beta testing.
The issue you're experiencing, like most other bugs come from upstream. GrapheneOS tries to but cannot fix every single upstream issue, and it's usually up to Google to get those issues sorted out.
If it is something that only affects GrapheneOS, the team tries to address it ASAP.