What is that narrow thin indoor bamboo like plant?

Might it be Lucky Bamboo?

Close @Pied_Pfeffer but I don’t ever see it with leaves (maybe they’re trimmed but I don’t think so) and I think it’s a bit thinner, like a pencil.

Are you talking about orchids?

It’s possible it’s just thinned out bamboo. Bamboo is ridiculously low maintenance yet manipulative (make it grow this way, make it grow that way sort of way)

I think it may be horsetail

You probably are thinking of horsetail; they make a nice dramatic display.

Rye grass comes in several sizes, up to Giant Rye Grass that is almost as big as, and looks a lot like, bamboo. You might have seen some smaller species.

But more likely is @pallen123‘s and @syz‘s suggestion of horsetail.

Have you looked at Fargesia Nitida?