Oh snap. Sounds a LOT like the Richard Curtis screenplay to the 2019 Danny Boyle movie.
The author has published it online, for free, to let viewers of both make up their own minds, I guess?
From Variety.
“Graphic Novel ‘Yesterday’ From 2011, Similar to Danny Boyle Film, Posted Online for Free https://t.co/GxfsiythaM https://twitter.com/Variety/status/1143865120826830848?s=17