Sure, but asking someone something that should be easily answered in a few seconds is also rude.

Programming is an intense job, in that it takes a lot of focus and time to build up a mental model of what you're working on to make progress

if they aren't presenting proof of doing research or they don't have the benefit of doubt (e.g. a new hire, etc.) they're being rude by not doing the research in the first place.

steelman, don't strawman. pushback on someone being rude by requesting something they could have looked up doesn't look like "let me google that for you" 95% of the time. it's far more likely to come out as "I'm not sure, honestly. I worked on X, but I didn't really need to get in to Y, so I'm not as familiar. Personally, I'd just do a google search, since I'm a little behind on that."

not rude. not implying anything about the questioner. still the general sentiment of "google it; that's not my job". if you admonish people as being "incredibly rude", you should be talking about things that people actually do with enough regularity to make the point worth making. that is pretty widely understood.