After installing Adobe Photoshop version 23.5, I noticed the size of my uncompressed 16bit PSB\PSD files were almost 100% bigger than version 23.4.2.
Adobe Support, can you please review the steps to recreate this issue below and fix.
Preferences > Files Handling, Disable Compression of PSD and PSB files is flagged (active)
Version of the App – Adobe Photoshop 23.5
Platform and OS version – Windows 11 64bit Pro 22000.856 \ CPU - i9-12900K\ 64GB Memory