So, I think it's just me who has this problem as I've searched google and no one seems to have had the same problem.
The issue is, everytime I open up a youtube tab on this laptop, it automatically changes to mobile youtube which is pretty much unusable.
I have reset my router, and don't really want to install an app since it's more convenient in just a tab. Any solutions?

I believe there's an option in youtube to request desktop site.

uh, thanks.
I went down to the bottom (which is pretty far down) and in tiny letters it had the word desktop.
problem solved

No problem mate