Teapots are actually pretty important. The reason is that the main issue with tea is that tea-drinking is originally and to a large extent still is a ritual thing. In order to further discussion of tea beyond the 'tea is just another kind of wine, we pick the leaves from the tree and make it into tea', we really have to think about how to work out the tea-drinking ritual.
As an aside, have you read any of the Ancillary series, by Ann Leckie? Sci-fi, far-futuristic, but the society at the core of the tales (among other peculiarly progress/regressive traditions) sets
great store on the Tea Ritual.
(Mentioning it is just a bit semi-random, I know.)
Wouldn't a pot be a metal jug?
Not necessarily. And, arguably, not ideally, for temperature-leaching reasons. You're not
supposed to heat a teapot directly (unlike a kettle) and, though you do have metal ones, the ceramic ones are what you might think of. Maybe a dainty(-looking) white porcelain server small quantities or a big round brown hunk of a thing carted round the works or offices on the rattly old tea trolley. Or look up "Clarice Cliff Teapot" images for the Art Deco style and more impressionist designs.
A
tea-urn is likely to be metal, maybe with an independent heating/heat-maintaining element to it (electric or maybe gas, usually), closest to a barrel that you'll find but still not really used for
storage.
Full disclosure, though, I'm not really that fond of tea. But I've seen enough of it brewed (in the tea sense) to know how it
is brewed, over here. And occasionally done it myself. But without the taste for it it's a hit-and-miss affair as to whether I've done it right (it wouldn't taste right to me, in any event, whether Builders' Tea or delicate fruit-tea infusions), which has gained me the reputation of
not being the one to ask for anything other than the fetching of a tea-flavoured-drink from a vending machine that's pre-calibrated to approximate the stuff almost, but not quite, entirely unlike tea that I can't mess up any more than the next most available pair of hands.