SEO Multilingual is not working for Dynamic Pages

I followed exactly what is write here (on step 2, classic editor) Wix Multilingual: Optimizing SEO Settings for Multilingual Sites | Help Center |
but this step is not working for Dynamic Pages.

i’m trying to change tag title (on second language option) but when I do that, it changes the original (which is english language version)
I’m know this can be a little confusing, but here’s the image to show what I’m talking about:

Hi @alesros250 ,

If you want multilingual dynamic pages, you should use the routers instead.

I have read that before… but I found this part about routers extremely complex. I must admit, I do not know if I can. And the lack of tutorials on the internet doesn’t help. If fact, I don’t even know where and how to start. But i’ll try my best, thank you.