Snapchat camera out of focus, normal camera not?

I have the Huawei P30 Lite and the normal camera actually takes really good photos and easily recognizable photos, but when I want to take photos via Snapchat, the camera never focuses. So it doesn't make beautiful photos. Why is that? I think that was the case when I bought it. Maybe not as bad back then as it is now, but it's still annoying.

Maybe it's because of Snapchat🤷♂️

It's up to Snapchat itself.

The camera function is not the best!

Same problem with WhatsApp.

The camera function in the app is also worse than the original app.