Good/reassuring to hear that. However, some users report that the noise/whine issue doesn’t occur until after a few months of use - so, that makes a return less straight forward, I believe…My friend has the Mac Studio M1 Max and he never hears anything from it. However, he isn't driving it hard either.
It seems the noise issue isn't consistent. If I were in your shoes, I'd give the Mac Studio a shot and just return it if it's a problem.