“Inflation doesn't make the Unit of Account (UoA) function worse; however, price instability does make it challenging to compare the worth of goods and services over time. The unit of account serves to facilitate the understanding of supply and demand dynamics in the economy, but its reliability is severely eroded by inflation.”

https://bitcoinmagazine.com/guides/unit-of-account?utm_source=carrot&utm_medium=partner&utm_campaign=carrot_share