How do i use Disney +?

So in 2017 we bought a smart tv sony that had around 200 apps but since this year most of the apps have disappeared, now there are only 13 left. We want to download disney + but google play was unfortunately one of the apps that were deleted. And I don't know how I'm going to download disney + to our smart tv sony.

What do I have to do?

And how long did you predict at Disney + ne? 1 week or how netflix a month?

And are there any old disney films like cinderella at disney + plus, the beautiful and that beast so old disney films.

Better get a fire tv 4k stick