Gmail app in particular has been basically abandoned for the last 4+ major android versions. I only really use it for my work email on a Shelter profile since it's just to handle urgent stuff if I'm afk. But even that minimal use has me about ready to install k-9 on the work profile too.
Maybe my memory is bring foiled by nostalgia, but i honestly remember the Gmail Inbox app being better than the current Gmail app. Clearly google can output a good UI, they just 100% choose not to.
The built-in email app for an OS doesnt have to be amazing, but it at least needs to be reasonable. iOS Mail isn't amazing either, but compared to the Gmail app it's a feature-packed power user tool.
They are blind and lost. Nest hasn't had a feature update since they acquired them 10 years ago. Their thermostats don't even have a "its freezing outside and the air conditioner shouldn't run" feature. Fi rots on the vine. Their camera service is terrible and they just raised the rates. Garbage company anymore.