I'm not imagining things, am I? Like I'll watch a video at normal volume and then all of a sudden I'm blasted with 300DB advertisement music, then when the video starts all I hear is ringing. Is it just hearing loss from having my ear canals filling with blood, or is youtube deliberately making their ads way louder than the videos they're on?
https://github.com/po5/mpv_sponsorblock
There's some more minimal versions but this one can do things like not skip again if you deliberately rewind, it can handle voting, etc. Newpipe has a fork with Sponsorblock built in, and Vanced also has it built in. No idea what the situation is on iOS, but the Sponsorblock API could totally be used by any app there, it's just more difficult to find FOSS projects on that platform.
EDIT: A full list of Sponsorblock ports, it looks like iOS needs a jailbreak tweak to add it to the official YouTube app. https://github.com/ajayyy/SponsorBlock/wiki/3rd-Party-Ports
Sick thanks!