These are design resources provided by “Photopea”
How to use
Photopea contains many PSD templates, which anyone can use for free.
Although they are older materials, they are completely free and can be downloaded directly as PSD files online and imported into Photoshop.
https://www.photopea.com/tuts/publish-your-psd-templates-in-photopea/
can find not only Photoshop assets but also AMV, GFX(GAME) materials.
But, One thing to be cautious about is that anyone can upload content.
https://www.photopea.com/learn/
https://www.photopea.com/tuts/photopea-doesnt-work-what-to-do/
Therefore, please read and use this guide, pay attention to copyright before downloading and using files, and modify accordingly.
DOWNLOAD
https://www.photopea.com/templates/
https://www.photopea.com/templates/authors