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I looked at my old Model X and it says on the back that it was made in France - does yours say the same? I don't know about those older models, but I think I read a few years ago that their devices are manufactured in China, and only partially assembled in France - and by some strange law, you can declare any such product as being made in France or the EU.

I am surprised that Trezor does not support all possible altcoins like Ledger, but it is obvious that there are so many new coins that it is not possible to add them all/create an app for them.

My stick says it made in France too.

Regarding the coins i found no way to add Algorand and Polkadot in Trezor, and Ledger natively supports them without installing 3-rd party apps.