I used to have a nasty habit of opening a text editor during the day and taking random notes during phone calls or as I worked. Several forced restarts (administrative, accidental or hardware related) forced me to start using those sticky-note apps. I've moved to Joplin now (very structured, supports markdown, syncs to dropbox periodically, is multiplatform)
The browser thing resonates though. It's not just which websites are open, but what state they're in (ie: logged in, midway through filling out a long form or survey). In a pinch I'll just 'kill -9 firefox' so after the reboot it automatically restores tabs and windows, but it's still messy. Sites that require authentication will just bounce you to the login page and may not "remember" where you were trying to get to. Maybe we need hibernate for browsers.
I don't think I've ever noticed a logout from restarting a browser.
I could understand if you're away from a plug and/or on the move though.
Also if cars have computers, don't they cold boot when you turn the car on? Phones and smart watches never truly "turn off" their screen goes into sleep mode which is fast to turn on
A bunch of browser tabs are open, and I don't feel like recovering them at relaunch.
I have my app windows set up exactly the way I like them, down to the pixel.
I'm used to my phone, TV, microwave, wristwatch, stereo, and car not needing to boot up.