Weird USB power behavior

[vegetassj4]

For some reason, my iPhone 12 Pro charges at a much lower wattage (Through USB A) after my M1 Mac mini has been on for a while. Upon reboot of the Mac, charging returns to a normal wattage. I have turned off 'optimized battery charging' on the iPhone to to see if this trend continues. Additionally, my iPhone X does not appear to exhibit this behavior (though I rarely use it).

Something with the phone, the Mac, a combination of both?

Any thoughts?

 

[vegetassj4]

Update:

Same behavior today, look at the difference between charging wattage of my X vs 12 pro.

Notes: the X wattage seems a bit lower than usual though. Swapping USB A ports has no effect. Using Thunderbolt (USB C) port appears to be unaffected.

 

[vegetassj4]

Looks like one of the subsequent updates fixed this behavior, as it is no longer happening.