Launchpad is one way. I have my TM prefs set to show TM in the menubar and you can "Enter Time Machine" directly from that, much quicker.thanks. I assume by (enter time machine) you mean the green, time machine logo from launchpad. to access the backups. No I've not set the hidden folders to unhidden, but will do. I did briefly look at dropbox, but that was years ago.
Quickest way to show and hide invisible folders on a modern Mac is shift+cmd+period, with Finder as the foreground app. Do it once to make invisibles visible, do it again to make them invisible.
Dropbox has changed a lot in 10 years.