Charging from a laptop USB C port

My laptop computer is an Asus ZenBook Pro Duo 15 OLED i9 running Windows 11 Pro.

It has two USB C Thunderbolt 3 ports.

Since it's a lot more convenient, I've been charging my Pixel 6 Pro using one of my computer USB C ports instead of my Google Pixel 30 watt charger.

I just now compared what my phone said as to hour(s) and minutes to a full charge between the Google Pixel 30 watt charger and my computer. They were identical. I then looked at the specs on my computer's USB C Thunderbolt 3 ports. They supply up to 100 watts of power! Wow! My Pixel 6 Pro apparently limits the incoming power to what is actually needed to properly charge.

Is there confirmation that there is no problem doing this and that this capability is as designed?

It shouldn't since the phone should limit the current. It's probably an output of 5V and the phone supplies the resistance (load) so that limits the current to the phone.

At least that is what happens with all phones I have had, so I can only assume the pixel 6 would be the same.

If the phone starts to smoke; I might be wrong.

It will be fine as the phone limits what power it draws from a USB charger.