I know you want answers from “anyone else" but I just want to say that I’ve been a satisfied user of Downie for many years. Why? it downloads video from just about any source, not just YouTube, close to 100% of the time, the developer releases regular updates and is very responsive to user inquiries, and paying for the software is a purchase rather than a subscription.
As an aside, the developer was the victim of an automated Apple App Store review process back in 2020 (coverage of the fiasco was how I first heard about Downie) :
https://9to5mac.com/2020/08/05/mistake-by-apple/