I would not keep it just because it's still in a depends on somwhere. LibStub is obsolete.
I mean you can still use it if you like to but the libraries that used it in the past often got changed to not be compatible anymore so you cannot even use it in many circumstances!
LibStub can be very often "simply" replaced as described in the linked thread here:
https://www.esoui.com/forums/showthread.php?t=9149
-> If you see dependencies in subfolders (e.g. "libs") of addons
-> If the addon is old and still uses "LibStub" (an obsolete library for versioning)
I bet within Wykkyyd addons it's used for LibAddonMenu-2.0 ?
So just replace the lines like this:
local LAM = LibStub("LibAddonMenu-2.0")
with
local LAM = LibAddonMenu2
And remove the depnedsOn or optionalDependsOn LibStub.