As a little nitpicky note: It bugs me that composing emails on Gmail’s website works so differently from composing emails in its mobile apps, making it easy to mess up your drafts. The text formatting works completely differently between desktop and mobile versions of Gmail. For example, mobile messages default to being double-spaced (or 1.5-spaced?), while desktop emails default to single-spaced– and if you switch from one editor to the other, it’s anyone’s guess which type of formatting will be preserved or overwritten. Also bullet points and numbers from the desktop version aren’t carried over into the mobile version, meaning that if you open a draft on your phone, you destroy that formatting.
It’s all rather silly, especially considering that Gmail is a cloud service. A consistent experience is the bare minimum one ought to be able to expect in that context.