I'm still trying to get myself over to linux, and I'm having a hard time finding a replacement for BetterTouchTool. Essentially, the app lets you customize multitouch trackpad gestures per-app and system wide with single to 5 finger support.
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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From the developer, he said that Wayland has no way to support these features, not that he won't support them. You need the right APIs to develop this app, and while X11 seems to have them, Wayland does not.