Rod wrote:
Odd how it seems to change the format to PSD. If this is the case then this isn't safe for GIMP workspace files because their are still many aspects of the Photoshop Document Files that conflict with GIMP's tools. You should make sure the format remains XCF and IS still editable by GIMP in all aspects. Layer adjustments will not work for an XCF file and still be editable in the user's GIMP program. If you are uploading an existing XCF file to this website i HIGHLY advise you create a duplicate first.
Thanks for your comment. I decided to use PSD as internal foramt, since it is much more "expressive" than XCF or other formats. Right now, you can not export XCF from Photopea, but you can export PSD and then import PSD into Gimp. It is obvious, that you can not deliver Adjustment layers or Layer Styles from Photopea (or Photoshop) to Gimp, but other adjustments (layer content, mask content, editing colors, blend modes ...) should be completely safe.
I am planning to add XCF export soon. I will probably rasterize Adjustment layers and Layer Styles into new layers, so converting PSD into XCF with Photopea will give better results, than current PSD import in Gimp.