I'm from West Yorkshire, the dialect is slowly fading. My grandfather would speak with a strong accent and with spatterings of Norse words. I notice now that, yes, dialects in the UK are becoming homogenised but there is also some American influence seeping in. The American way of pronouncing a double t as a d "better" => "bedder" is increasingly more prevalent in the UK, it's slightly saddening.

When I was staying with a friend in Norway once we visited his mother, and to me she sounded like someone with a broad Durham/Newcastle accent (my mother is from there) speaking German. A lot of north east words are germanic, or Scandinavian. My grandfather was a farmer near Durham and pigs were swine, children were bairns.

As for American influence, my youngest daughter picked up a lot of that from Youtube at one point, and I once interviewed a girl from Gravesend with such a strong US accent I assumed she'd grown up over there.

Exact same thing is happening in Australia. I'm guessing it's from watching streaming video, Netflix, TikTok, etc. where American accents predominate, and any non-American accents are flattened enough to be sure it's easy for Americans to understand them.

There really isn't one 'west yorkshire' accent, nor one 'north yorkshire' accent, there is much much more variety than that. A leeds resident sounds different from a wakefield or dewsbury resident, and even then there can be variation where some people exhibit less of their locale accent than others, depending on how much they rebelled against sounding 'local' in their teens.

Pronouncing zed as "zee" is particularly annoying (as in "Gen Z").

It may alleveiate the epidemic of th-fronting among young men.

I agree, it’s very sattening

Norse words?

I may be completely wrong, but I think one direction of evolution in pronunciation is the gradual shift to that which takes less physical effort to pronounce.

"Bedder" is less physical work, less effort, in the mouth than "better".