Which filter and what parameters should I use to deinterlace this video?
It has nothing to do with filters. The only way to deinterlace this video correctly, is by having the original footage. Right now you are using a .mp4 footage, it was already encoded by Youtube (this encoding process includes a deinterlacing too). So, technically you already are using a deinterlaced video.

If you deinterlace it again, it is like you were trying to put an egg white and yolk inside the eggshell, sure you can do it, but you won't get correct results.