Modded YouTube IPA files are common in sideloading communities. They often claim to offer:

YouTube--OLED--v.19.02.1--uploadedBy-ipabnb.ipa

[Enhancement] OLED theme · Issue #32 · qnblackcat/uYouPlus

YouTube does not have an official “OLED” version marked v.19.02.1 . The public YouTube iOS app versioning follows a different scheme. Any file named YouTube--OLED--v.19.02.1--uploadedBy-ipabnb.ipa is a third-party modified build, not an official Google release.

"YouTube--OLED--v.19.02.1--uploadedBy-ipabnb.ipa" a modified (tweaked) version of the YouTube app for iOS, likely distributed through the hosting platform . This specific version, , corresponds to a release of popular tweaks such as YTLitePlus Key Features & Tweaks

Installing IPA files from third-party sources like Starfiles carries inherent risks. Unlike the App Store, these files do not undergo Apple's security review. swaggyP36000/TrollStore-IPAs - GitHub

YouTube--OLED--v.19.02.1--uploadedBy-ipabnb.ipa - Starfiles