Not only that, it's not even an attempt to reflect the market value in most jurisdictions.
https://www.zillow.com/homedetails/3304-Gillenwater-Dr-Knoxv...
Sold in 2021 for $190K. Tax assessment in 2020 was $111K; in 2021 was $28K; in 2022 was $50K. The assessed value has no obvious tight relationship to the market value.