When using edge snapping with BTT and running the latest version of both BTT and macOS Sequoia the windows are not snapping to the edges of the monitor. There is padding that is occurring that never occurred before. Not sure if this expected behavior and there is a setting I can adjust or if its a bug with macOS Sequoia.
Device information:
by default BetterTouchTool now integrates with the native window resizing. Unfortunately for that it can not modify the margins, you need to manually disable them in System Settings => Desktop & Dock => Tiled windows have margins".
Alternatively you can change it in the BTT settings to "Use Classic BTT Window Resizing"
That was it! I turned off that setting and we are back to no padding. Thanks for the quick repose Andreas!
Thank you so much, this was driving me crazy ! 
Idem.
Thanks!!
@Andreas_Hegenberg , i'd advise you to include this quick tutorial in a support window when people try to fix this by tweaking on BTT. It was super annoying and yet it took me more than a month to look it over.
Just here for the answer.
This was driving me nuts. Snapping and docking with Sequoia is a pleasure again. Problem solved. Now it goes all the way to the border. Window works.
Hope google ranks this answer higher going forward!
