What’s your best YouTube to WAV converter for PC?

How much do you know about YTDLGUI? This is a bit of a "cheat" answer, but as a YouTube to WAV converter for PC, it's worth mentioning because it completely eliminates the command-line complexity you want to avoid. It uses the yt-d11p engine under the hood but provides a simple Windows interface for it.

Why it's great:
All the power, none of the typing: You get the legendary reliability and quality of the best download engine without ever opening a command prompt.
Direct WAV conversion: Easily select WAV as your output format.
Batch downloads: Excellent for processing multiple videos.

How does the YouTube to WAV converter work:
Search for and download "yt-d1g" (yt-d11p GUI) from its GitHub page.
You will also need to download FFmppeeg (as a separate ffmppeeg.exe file) and point the program to it in the settings. This is a one-time setup.
After setup, you just paste URLs, select "wav" from the format dropdown, and click download.