All of the T Putnam Hill/Travis P. Hill (me) albums here (https://lomaeditions.bandcamp.com/) at least attempt for un-guitar territory. Granular delay and/or synthesis is almost always involved, as are all sorts of reverbs, amplitude modulations, and in the older pieces, a very handy 4MS Nocto Loco, which I regrettably parted with several years ago.
“Quaver_C” was composed of some very junky acoustic guitar recordings I thought I had no use for. But then I ran them through Ableton and some M4L devices and got that little ditty. The other three albums are all live “playthroughs” (as KFW might call them)—no overdubs, using the aforementioned techniques.
Another useful tool in my un-guitar adventures—and which I also regrettably parted with—was the Lightfoot Labs Goatkeeper (https://lightfootlabs.com/gk3/), which was a great way to remove the attack from my playing, among other uses.
As a side note, I got rid of the Goatkeeper awhile back because it just took up too much space on my pedalboard. In my search for a link to share in this post, I was super surprised and happy to find out that Malekko has overhauled it into a smaller format (https://malekkoheavyindustry.com/product/malekko-goatkeeper/). I might have to grab one after my next paycheck.