It’s a good thing this discussion exists, if only for making people aware of the fact that when you see something on a screen, it isn’t necessarily as “real” as you expect it to be.
In movies, people have already accepted this. Is CGI cheating? Or using a stunt-double? Yes, but also no, because it’s not a secret that it’s in every single action movie. That’s why a guy like Jackie Chan who does his own stunts gets so much respect.
In pictures, same thing. Is Photoshop cheating? In a way yes, but you know every single “high profile” picture in a magazine and online has been Photoshopped or at least has been enhanced to a certain level. But we all know this, so it’s an accepted form of “cheating/manipulation”.
In music, you have several levels of altering performance perception. From being able to play your stuff live at levels ranging from acceptable to incredible (SRV, EJ, Shawn Lane, Gambale etc), the equivalent of being “the real deal”, to needing 250+ takes to cut-n-paste and cherry pick a studio performance from those takes (Lars Ulrich on the “Justice for All” album), to lip syncing a voice that belongs to another vocalist during a supposed live performance (this is some next-level cheating !), like Milli Vanilli.
Now you have video added to it, and everyone has access to tools to manipulate the video and the audio.
This means: you can edit your guitar solo and compile multiple takes. You can record it at a slower speed and play it back at a higher speed. You can mimick your pre-recorded solo, compiled from 50 takes. You can speed up the video. Etc.
Is this cheating? For me it depends. If the artist/performer is HONEST when asked about the methods used, then, no.
If the artist/performer is NOT HONEST when asked about the methods used, then yes.
For me it’s really that simple. The problem is that some of these IG guitarists have been avoiding to answer questions about their performances, which of course fuels the doubts.
Also when there are so many options to manipulate video/audio, it’s difficult to draw conclusions. Maybe ONE video was sped up out of the 100. Then making a statement like “he speeds up his videos” is inaccurate. More accurate would be: he sped up one video out of the 100, the rest is not sped up.
You can safely assume that many IG performances that look “live” have been prerecorded and mimicked. For everyone that has recorded in front of a camera, the reason is obvious.
You have several red light syndromes going on at the same time, audio and video, plus “looking good” on video, plus the technical complexities of recording a decent video/audio performance all at once.
So it’s to be expected that some people would like to be able to concentrate on one thing at a time.
However, if asked about it, I feel you owe it to the viewers of the video to be clear and honest about it when asked how you recorded it. If you avoid answering or are dishonest about it, then you increase the possibility of being called out as a fraud.