Is there a way to avoid having execute permissions added automatically to files?

[lostipod]

You are correct sir! I thought it was Ventoy but it's any exFAT USB device on Linux it would seem.

FAT / FAT32 formatted drives don't support file permissions. The permissions for everything are determined by how the drive is mounted.

Sorry for the confusion and thank for the response. And thank you very, very much for the amazing Ventoy!