I have followed FastPath since I am using it with Mikrotik devices and I have just seen that some of the LEDE+OpenWRT developers are working these days on implementing it in their kernel.
The LEDE discussion is at:
The OpenWRT patches I have seen are at:
And the blog post about it is at:
It would be nice to get any boost in VyOS if possible.
I am not sure to which branch of LEDE it will make it but when it will be stable I believe it could be added into VyOS.
So I am requesting that if it will be stabilized it will also be added into VyOS.