Sorry for the lack of using the template but I don't have much info to provide on this only to say that I started getting errors from App Store Connect when submitting a Catalyst app using the 2.88 release.
The app passes validation but I later get an email saying:
ITMS-90714: Invalid binary - The app contains one or more corrupted binaries. Please rebuild the app and resubmit.
I've traced the issue back to using 2.88. Reverting the dependency to 2.86.2 solves the issue. Also worth noting that this issue doesn't reproduce on the iOS build of the app; only on the Catalyst build.