Alt + left-click not working anymore in Blender 2.8? I don't know why but it seems Alt+LMB is not working for edge loop selection in blender 2.80. Is it a bug? Or is there's a new shortcut for that?
If you are using Linux Mint this will be an issue as Alt is used for moving and resizing windows.
Go to System Settings &gt; Windows &amp; then go to Behavior tab. Inside there you'll see Special key to move and resize windows and set it to Super and Alt + LMB will work just as fine.