The discussion here is centered on bandwidth and accessibility, and both of those problems are solved by using the mail client that (almost definitely) shipped with your device.
The discussion here is centered on bandwidth and accessibility, and both of those problems are solved by using the mail client that (almost definitely) shipped with your device.
Google knows the numbers for that, we don't. But it's striking how few "I use this UI in situation X" comments this story and its duplicates have. Most of the comments are by people who at best imagine it would be something they'd use, but actually don't. (And at worst the comments are by people who don't know what the basic HTML UI was, but are here to complain about other aspects of gmail.)
Windows, macOS, and many Linux distributions ship with mail clients that you can set up to use with Gmail.
I wonder how many people on earth are accessing webmail from a device that does not have a mail client installed.