Johnex
5
For me the new kernel makes everything feel sluggish. The UI is slower to load for me, and general connections felt slower to load with clean firmware installs with the exact same light config (static routes, vpn, adguard etc) nothing that would break the networking.
My laptop also falls back to Wifi 4 (N) when using the new kernel and 2.4ghz, it will not find the 5ghz wifi at all.
4.0.1 beta 1:

Kernel 5.4:

More testing is needed i think for general users 