I mean, GM was producing the first "modern" EV 24 years ago (1996) - and are one of the biggest traditional auto manufacturers with both a history of producing EVs/hybrids as well as a plan to introduce a large number of EVs across their brands. It's definitely not as fast as we'd all like, but I think the indication that they know ICE is limited lifespan (for a lot of reasons) is definitely built into GM's history and future. It's no Tesla as far as EV volume, capability, and product line - but they're definitely working on it (like the slow multi-million-vehicle-production-per-year company they are). I think it's hard to argue that GM has known about this and ignored the problem, though.

Anyway, disclaimer: I work for Cruise and so I'm clearly a shill for GM, so you can just ignore a lot of what I say because I'm 100% biased.