is it safe to daily use 10W wirless charger for iPhone 11 Pro?

Yes. All USB and Qi power sources are compatible with all Apple iOS devices.

I just looked this up on their website. It is a Qi certified charger, and they mention the iPhone, like it could be MFi. You would need to try and find an comments on the device. A Qi certified charger should work with the iPhone.

I don't know it specifically. But any quality brand should adhere to the standard. Anker, Mophie, InCase, Belkin, etc. Apple sells a couple directly, which means that Apple thinks they make the cut: https://www.apple.com/shop/iphone/iphone-accessories

Even 1,000 watts, if you can find one...

Here's some additional information. The capacity of the power source doesn't matter, because the charger itself is built into the phone, and it will only take what it needs from the power source.

Here's some more detailed information-->When to charge your iPhone or iPad - Apple Community