I'm being prompted to log in multiple times per day, as of maybe yesterday. Cleared cache, cookies, etc. There's no option to remain logged in.
I am, and this is one reason why being logged out and demanding a new login is so troublesome -- I have to drop everything and spend a minute getting the 2FA code. I'm running Chrome on a Chromebook, and the web client is necessary -- Android apps are prone to crashing on ChromeOS.