I remember reading old Brian interviews regarding the making of Hot Space and his various thoughts. He talked about his disagreements with John Deacon; on the song "Back Chat", John wanted to lean more into funk and eliminate any rock elements. Whereas Brian felt that there needed to be some rock elements and fought for a guitar solo on the song.
In another interview, Brian talked about how he didn't like Motown and R&B's approach to guitar, even stating that his guitar-playing style evolved in response to it. He wanted guitar to be at the forefront making noise rather than being a supporting instrument.
This got me thinking about Funk Rock because it seems like it set a good precedent for what Brian wanted to accomplish on Hot Space and even earlier tracks like "Dragon Attack". Jimi Hendrix's music incorporated a lot of funk influences across his albums, especially on the live album with Billy Cox and Buddy Miles which was released in 1970 near the end of Jimi's life. The album foreshadowed a lot of the funk rock developments which would emerge in the 70s. Brian, like most guitarists, is a huge Hendrix fan so I wondered if he would take inspiration.
Then you have Funkadelic's funk rock approach which is something of a successor to what Hendrix was doing. I wonder what Brian would have thought of Eddie Hazel's guitar solo on "Maggot Brain" for instance.*
Part of me wonders why the band didn't really discuss funk rock influences. Most of the narratives around Hot Space center around the schism in the band between rock vs "disco" (with R&B, soul, and funk also thrown in.), or even white music
Maybe John wouldn't have agreed if he was set on eliminating all rock influences. But it would at least be a good compromise between the various musical interests of the band.
*=To highlight another Queen/P-Funk connection, Roger covered the Parliaments "I Wanna Testify" on his first solo venture.