They can, but I don't believe they will except maybe in the rare case of world famous talent. Google is fuzzy with their bands, for sure, but 750k is the 99th percentile for L7 SWEs in general at Google. I had a competing offer for over $1M, and Google still topped out an L7 offer to me at $750k. I also have a very strong ML background.
Get out troll. You don’t have a competing offer for 750 that includes real equity that you can sell on a real market. And you’ll never get that money or that level from Google. Should be banned for even asking.