Not everything is in DIN. "Cage Warriors" and the text and numbers in black on yellow are in a different font.

Youtube Sans is a different font from that of the logo

https://www.itsnicethat.com/news/youtube-sans-typeface-by-saffron-190517

https://www.itsnicethat.com/system/files/052017/591ec0487fa44ca09f0002b0/images_slice_large/YouTube-Sans_0.jpg

It's Alternate Gothic 2, as it's explained in the thread you quoted

https://www.theverge.com/platform/amp/2017/8/29/16216868/new-youtube-logo-redesign-font-color-app-design

'Once they had decided to keep the play button and wordmark, the team set about modernizing them. “The old logo has a typeface from 1903, alternate gothic number two, and it’s been manually tweaked, so there are weird design nerd things that are off. The U in Tube is not the same as the U in You, so if you take them and overlay they don’t exactly line up,” said Bettig. '

https://www.dafont.com/forum/read/331806/new-youtube-logo-font

I don't know. The numbers are clearly as in DIN. Perhaps is another adaptation of this font (there are many). You have to take into accout that governments use custom fonts to avoid forgeries.

You are right. Also the M is different (in DIN the sides are vertical, not slanted).

Now that I look closer, I see that the M in 'America' is different from the M in 'Rasmussen' or 'Mar'

I would say that the text in lowercase is Helvetica (https://www.myfonts.com/search/helvetica/) while the data in capitals is in Din (https://www.myfonts.com/search/din/)

Looking further, could be Impact Condensed

It's not exact, but it's close.

It's not exact, but it's close.

It's not exactly Ubuntu, but it's close.

Perhaps is the bold weigth. The difference is small

https://www.myfonts.com/fonts/linotype/optima/pro-black/

https://www.myfonts.com/fonts/linotype/optima/pro-bold/

The top line is Washington Medium, I Think