Stefan Babcock

Stefan can be seen throughout many shots of the video playing a faded TV yellow double cut les paul. It is not a junior size model because it has a wider pick guard. It looks all stock with the same black soapbar pickups as well.

Based on the headstock, and a VERY helpful comment, I can see that this is a Tokai SG.

Stefan Babcock began utilizing the Bartlett Electric Parlor following the release of PUP's 2020 EP: This Place Sucks Ass. Babcock had the Electric Parlor custom built to resemble his typical Les Paul that can be spotted in most of PUP's older performances. He uses the Parlor for heavier presence on the lower tunings that make up "This Place Sucks Ass".

In Stefan's own profile pic on EB, he is playing his Gibson Les Paul Special (which has P90s). And here is what the guitar looks like, with 4 knobs and 2 P90 pickups.

We can see in this live performance video Stefan is using a Fender Mustang 90 in Torino Red.

Stefan posted on his instagram that he had purchased a custom from Eb rooster guitars called the smokey pine, its a simple les paul style guitar with a single mcnelly stager swager a pine body and a mahogony neck. You can also see stefan use it in the anaphylaxis live video and on recent photos promoting their new ep rot.