I use this on my iPhone 12. I also want to be able to use it on my Desktop Windows 10. Most my pictures are on the desktop and I like the collages PS Express has. They have many more than my Photoshop Elements.
When I open PS Express on the desktop, it goes to an individual picture, doesn't give you the option of picking a collage. What don't I see?
Some features are simply platform-specific or tied to AI-driven web services only available on connected devices. Auto-Collage is such a thing.
Since your question is about Photoshop Express, I have moved this from the Photoshop forum where you posted to PS Express.
It seem that some different functions appear on different devices.
By the way Photoshop express is amazing tool) Very easy to use.
I also wish that real Photoshop full version will become also - "easy to use" just like figma.
I mean Photoshop creators should make more intuitive design ......
Photoshop is developed for professionals. If you want "easy to use", stay with Photoshop Express.