Bass cut = high pass filter question

[nunonaos]

Hello
I want to include a high pass filter in my les paul, i think it will be a usable tone, kind of giving it more of a strat tone.

All the schematics i've seen from high pass filters include a resistor to ground after the capacitor, like this:
https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.electronics-tutorials.ws%2Ffilter%2Ffilter_3.html&psig=AOvVaw2OSEIw3Unku6E_PGfggBKr&ust=1590159266666000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCNDU9oSbxekCFQAAAAAdAAAAABAD

On the other hand, on the wiring schematics (from guitar related sites) like the reverend schematic they only use a resistor to blend the capacitor in the circuit, they don't include a resistor to ground after the capacitor.
https://www.google.com/url?sa=i&url=http%3A%2F%2Faaronlumguitar.blogspot.com%2F2015%2F01%2Fbass-cut-tone-pot-get-some-clarity-out.html&psig=AOvVaw3FLLnNTSkBNQFbxmuKAMBM&ust=1590159313834000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCNi19ZqbxekCFQAAAAAdAAAAABAD

So what's the deal with this?
Can I assume that the resistor is the input inpedance on the amplifier (or effect pedal, etc) after the guitar? Or the resistor is the existing resistance in the pickups and guitar pots?

I'm confused.