It drives me crazy. I wrote earlier about my deciding to save my art pieces natively as Procreate files because it was so much more efficient in terms of file size. Well, I just finished a new crowtoon and when I saved it I noticed it was 20 Mbytes as a Procreate file. Seemed larger than it should have been. So I saved as a Photoshop and then saved as a Clip Studio file. And, in a direct reversal, the Photoshop was a lot smaller than the Procreate file and the Clip Studio was the smallest of all. Around 20/13/11 was the comparison.
Grrrr, I say GRRRRRR! It's a pain to have different file types - efficiency says "just use one". And yet now I don't know which is "better" - it seems to vary. And to make life just that extra bit annoying, text doesn't save when you go from one to another - it gets flattened into an image itself, not an editable text layer. Which means it's then much more cumbersome to do any editing down the line - I'll have to retype everything. Which comes with its own probability of new typos jumping on board.
Once again. GRRRRRRR!!!!