Your rating of the sound of this otherwise excellent album is very generous. I wouldn't rate the LP anywhere above 7—and digital versions fall well below that. Even on the LP, most of the songs sound ‘stuffy’, with all the instruments competing with each other for top spot in terms of loudness and frequency range.
Everything on the album was recorded during a single session at Sunset Sound in the fall of 2023, and everything was mixed at MixStar, at least in part while the recording session was still ongoing (mixes were sent from MixStar to Sunset Sound for approval). Andrew Watt's current MO seems to rely on the ability to record whatever is happening in the studio at any time, which almost certainly means a 100% digital recording setup (as does the need to quickly send recordings back and forth between California and Virginia). When asked about the ‘vintage’ feel of the album, Watt only commented that the songs hadn't been recorded to a click track and made no mention of any analog equipment being used.
Digital releases of the stereo mix are all heavily limited (with hard clipping). The LP is somewhat more dynamic and has more top end as well. Both the digital releases and the LP were mastered by Matt Colton at Metropolis, so my own guess would be that he created two different masterings, one for vinyl and one for digital, rather than cutting the vinyl from the mastering intended for digital releases.
I have compared every color variant of this LP (all pressed at Optimal from the exact same lacquers), except for the one available only through Blood Records. The ‘Coke bottle’ translucent green one is noticeably quieter than all the others (somewhat unsurprisingly, since it is the only one made from a single compound), with the ‘blue splatter’ version a not-too-distant second (that record is transparent, by the way, not white as some pictures make it seem). I haven't heard the test pressing on black vinyl (200 numbered copies of it exist) but have read reports that it sounds better than the various colored versions, too. While a first test pressing was made in the summer of 2024, the copies in circulation are from late March, 2025. This means that they were in fact pressed after the commercially available colored LPs, which would suggest that a re-press of the album is already underway, possibly on black vinyl.
The band on this album is the same that backed Eddie Vedder on his 2022 Earthling album (which was also produced by Watt and featured Elton John on one track) and went on tour with him around that time (Pino Palladino was not on the album but joined for the tour, although he was quickly replaced by Chris Chaney).