I agree with your sentiment for the most part (although I haven't run native windows outlook in 15 years)... however, for what it's worth, you can apply client

I agree with your sentiment for the most part (although I haven't run native windows outlook in 15 years)... however, for what it's worth, you can apply client side mail rules to existing emails on MacOS. I've used this to classify automated notifications into at least a dozen folders at work. At home I use Thunderbird ;-)