Earlier quoted context omitted.
the base unit a lot of trading is quoted in satoshis instead of "x thousandth fractions of a bitcoin"
Ehm...where is this the case? Pretty much all exchanges that I actively monitor all list their order books, trade history etc. in bitcoin, with a varying number of decimals, and they also accept orders in bitcoin denomination as well. Sometimes they offer a switch in their own trading UI to use mBTC (milli-bitcoin, a thousanth of a bitcoin) as the unit, but that is always optional and I know nobody who uses it. That…
Most of the exchanges shut down their chat rooms but thats where it is mostly said, and other real time trading arenas where people talk. People say 200k/sat while reading .000200000 btc
but a satoshi also works in other quotes where other cryptocurrencies are the base unit as well. In an XMR/ETH market, the XMR would be quoted in X eth-sat or ethereum satoshis.
The GUIs use a variety of different metric base units and there is no agreement on the GUIs, that has nothing to do with the terms people use in speech, as they don't say "x thousandth of a bitcoin"