https://bugs.winehq.org/show_bug.cgi?id=56378
--- Comment #4 from Qwerty Chouskie asdfghrbljzmkd@outlook.com --- I just tested Adobe CC again on Staging 10.3, I didn't run into user32.SetAdditionalForegroundBoostProcesses missing but I did run into KERNEL32.dll.SetThreadpoolTimerEx missing, so I just opened another bug report: https://bugs.winehq.org/show_bug.cgi?id=57980
The good news is that things seemed to run fine without `--no-sandbox`. Progress!