This release does not have a Play Store Description, so we grabbed one from version 14.20:
SmartTubeNext is an advanced YouTube app for Android TVs and TV boxes, free & open source. It is not a live TV client and does not support “YouTube TV”.
✅ Features: no ads | SponsorBlock | adjustable playback speed | 4k and higher | 60fps | HDR | does not require Google Services | helpful international community
❌ Disadvantages: no live chat | no comments stability, voice search and casting support might be worse than in the official YouTube, depending on your device