You can directly upload the ipa file.
But for ios>=16, you need to name the ipa file:
original file firstname.lastname@example.org, that is, you need to add
@bundle-identifier on the original basis, in which
bundle-identifier is the
CFBundleIdentifier of Info.plist in the IPA package. Such as:
Recommended to use ipa-renamer to rename your ipa files automatically and quickly.