My experience here is the opposite. I have an Audi A8 and my girlfriend drives a Tesla Model 3. In my experience, the Audi is way, way more reliable when it comes to the features. The features just work for me. I've never had any problems with the lane assist, for example, and I drive between 1000km and 1500km a week through Germany (not sure if the features are different depending on the location). I'd like if I didn't have to put my hands on the steering wheel that often but that's pretty much it.

Tesla's offerings are a real letdown. And they don't work as advertised either, which is why they're not allowed to advertise them in the same way anymore. It's missing way, way too many things that the car should notice. It's kind of like Siri. When it works, it's amazing. It often doesn't so you can't really rely on it. We also had to replace a rim on the right hand side because the car simply didn't turn the wheel back. Girlfriend won't use the feature anymore now because she's kind of scared.

The summons feature doesn't work reliably either even when the conditions are perfect. The car just stops and you stand there and don't know why it's not doing anything at all.

I can't speak for BMW or Cadillac but calling FSD a decade ahead is ridiculous. It fails at so many simple things and all videos online confirm this and they don't seem to be able to really fix this. Every new Beta shows the exact same problems again and again.