With Gmail you get basic keyboard shortcuts but they're inconsistent and NOT intuitive. For example, you can hit E to archive an email, R to reply, C to compose or hit X to select a group of emails, but to even find what shortcuts do what, you need to go to a separate document to memorize them. When trying to navigate through keyboard shortcuts only, it feels like a constant start-stop friction and the experience feels piecemeal.
For example, Gmail's snoozing and scheduling features are incredibly mouse heavy and tedious, it requires a dreadful amount of effort to even use these features so my guess is many of you don't. I certainly didn't when using Gmail.
If you want to reply in line, the process is that you need to copy the entire email, format it, and then use their quoting feature and then write your reply. This is tedious.
In terms of Templates, if you don't know to look for them, you'll never find them. You have to dig into Advanced Settings just to turn them on.
Once enabled, using them felt like clicking through a cockpit... The compose window is already cluttered with icons, and inserting a template takes three clicks, every time. It works… but not without friction.
While Gmail offers offline mode, you need to remember to enable it... so by the time you actually remember you need offline mode, oops its too late!