This ad on a YTMP3 converter makes it seem as if it's the button you are supposed to click to convert (sorry for bad quality. I'm working on a school project) :
7 Best YouTube to MP3 Converters in 2022 : r/4kdownloadapps
Best YouTube to MP3 Converters for Mac Users
Twilyght1 (u/Twilyght1) - Reddit
Top 11 YouTube to MP3 Converters for Your MP3 Needs
Best YouTube Downloader site alternative? : r/youtubedl
I made a YouTube video/playlist to MP3 converter with the ability to suggest and edit MP3 annotations : r/Python
42 Best YouTube to MP3 Converter App For iPhone, Windows (Free & Paid)
7 Best YouTube to MP3 Converters in 2022 : r/4kdownloadapps