I could find ISO 80000-2:2019 and ISO 80000-3:2019 at Libgen
There wasn't an upload of 80000-1:2022. However, there was a pdf titled 'ISO 80000-1:2023' written in what I assume is german, do with that what you will
I've mirrored the files to my proton drive (that's where the links above will take you) and I intend to keep them there indefinitely. I haven't checked them for malware, so use dangerzone if you're paranoid.