But I too was (edit: also still am!) interesed in fpga so I was just scrolling and I found this really really great video (I can't recommend this enough, so much so that before reading your comment that I actually submitted that video as HN submission)

The video I am talking about is this: https://www.youtube.com/watch?v=d3nuepnbmC4 (FPGAs Aren’t Processors (Unless You Want Them to Be) || FPGA Deep Dive and Use)

Also check out what this guy has been doing with old factory robot machines and using FPGA for them was a really practical use of it and they have another video about it too that you can find on their channel.

Some parts of the video especially near the end went really really out of my head but this might be one of the best videos about FPGA judging from the comments and I just really loved it man, so that's about it yeah, I recommend watching the video!