It depends on just how badly that neck-feel is winding you up. In the situation you describe, I eventually tend to sand down my necks and refinish them - which is a-little drastic, but, then ..if the guitar is a keeper 4 life, setting it up to your preference can sometimes require drastic measures.
I have also been known to use grade 0000 steel wool to remove the shine on a super-gloss finish too.. but ..I’ll usually go drastic (eventually) if drastic is called for.
Now, ...
...I know nothing of this magic regarding “Salami Sam’iches” to treat strings and fretboards! But I do use WD40 on a cloth handkerchief, not a lot, just a whif, the mere suggestion of the stuff on a cloth handkerchief, to wipe down my strings after playing.
Been using that trick since I was a kid.
My strings last longer, it makes them nice and slick to play on, quieter in transitions, all good stuff. You don’t use enough to wet the fretboard, just use it to wipe down and clean the strings. Works great, ..or has for me for the last 30-some years anyhoos. ...kinda like Fast-fret ..but is much-less messy than that.