https://bugs.winehq.org/show_bug.cgi?id=27594
--- Comment #49 from Austin English austinenglish@gmail.com --- (In reply to j-r from comment #48)
Created attachment 73965 [details] POC patch to override cpu feature bits
Could something like this patch to toggle CPU feature bits in wineboot be a way forward?
One could also do it in msvcrt with perhaps less side effects and the possibility to additionally check a key below app.defaults for an app specific override.
You're much more likely to get feedback by submitting pull request. Label it as 'WIP' or 'Draft' to indicate it's not ready to merge yet, but requesting feedback.