Fun fact: Star Trek set designers don't typically build weird alien chairs. They just go buy them. Those are real products for humans!

https://www.ex-astris-scientia.org/database/chairs-trek.htm

1. Stokke Globe Garden, designed by Peter Opsvik
2. Organic Chair, designed by Luca and Paolo Giacomuzzi
3. Artifort F582 Ribbon Chair
4. Modesty Veiled Armchair, designed by Italo Rota for Driade

There have been many ways, both formal and informal, to try and measure human progress towards a proper, humanist utopia. In the 20th century, the Human Development Index was created as a measurement. Karl Marx famously pointed out as a rule of thumb: "Social progress can be measured by the social position of the female sex". But all of those were, in fact, wrong.

It was only centuries after, when without a doubt, the true measurement of progress was found: The Chair Weirdness Index.

In Odos defense he could be the chair

This TNG Engineering chair came with the toy version of the warp core. I have never been able to get any action figure to sit in it without tape, glue, or something to support it.

What I love about this is the set builders all assumed alien cultures all had a form of chair.

Some people do like to just stand

I am pretty sure that Ive seen that scene on the next generation. Haven't watch DS9 yet though so can't tell.

They have evolved beyond the need for money, competition or comfort for both buttcheeks. They are truly free.

When you see how Riker sits down, you have to concede that so-called "normal" chairs just don't cut it.

I've always loved the idea of non-human chairs that confirm to other body structures.

The Snakeellian diplomat greeted the Captain with a solemn but kind face. Despite their opposing objectives, both sides knew an alience must be formed or both parties would be destroyed. "Please, have a seat," he said, gesturing to a horizontal spike poking through a ring held together with a thin vertical pole

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List of chairs for sale that were featured on Star Trek:
https://www.ex-astris-scientia.org/database/chairs-trek.htm

oh crap, someone beat me to this one