There is always nuance. I think if you work on a team for some product, it would be good to be a user of that product. Especially if you are at a high level dr

There is always nuance. I think if you work on a team for some product, it would be good to be a user of that product. Especially if you are at a high level driving product decisions. I think if you don't work on a specific product it is good to have diversity. For example GMail developers should probably use a mix of OSes and web browsers. But most Android GMail app developers should probably be using Android GMail. But of course you don't want to be blind to other players, copying good ideas is good. So you do want to regularly interact with the other options as well. But I don't think only using the third-party option is a good idea either. If you only use an Apple Watch you don't know how the Pixel Watch works and how it has different interaction patterns (which on its own is probably a good thing). Maybe the product leads of the Pixel watch should regularly alternate between their own product and other competitors.