It’s amazing, I came from a Galaxy s20+ and its a whole new world. Only times it tends to fail is if I’m backlit and sun shines in the lens (easily fixed by blocking the sun with my body or turning) or if I’m wearing sunglasses. It usually doesn’t have a problem with sunglasses, but sometimes it does. You can add a secondary look though, so I could just save one of me with sunglasses and take care of the issue, I’m just lazy and it doesn’t happen frequently enough for me to care lol

It even recognizes my face when it’s inside my motorcycle helmet AND (sometimes) wearing sunglasses. It’s great

If you’re into photo wallpapers (as opposed to abstract or 3d rendered ones for example) Unsplash is great.

It’s a website, but they also have an app. It’s a completely free stock photo website, except the photos don’t suck like stock photos usually do lol

ArtStation is another good one if you’re into more paintings and renders as wallpapers. It’s an app for artists to share their work, but you can just save/screenshot the images you like and use them as wallpapers.

As an artist myself, I promise you 99% of artists don’t care if you do that as long as it’s just for your personal use.