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There’s does seem to be a problem with some models that will accelerate when the AC compressor kicks on. If you are holding your break normally at a stop and looking down at the radio or something you can go into a slow forward. I’ve noticed this with my 2006 Sequoia.

I don't know if this is still the practice, but I suspect it is. Many years ago when I was a mechanic, it was common for manufacturers to bump up the idle speed slightly when the AC compressor kicked on This was done to compensate for the extra load the compressor placed on the engine. On carbureted vehicles there was usually a solenoid that pushed the throttle valve open a hair further. On cars with electronic fuel injection, the computer would usually open up an idle speed control valve a little further to keep the engine idling at the same RPM. That is probably what you are noticing. It is deliberate and common. Of course it could be opening it more than necessary. The old solenoids on the throttle linkage were adjustable. Today pretty much nothing is adjustable however...