There is a schedule built into the chain that automatically lowers the inflation with half a percent per year or so. Not entirely sure on the exact time frame.
According to perplexity:
The inflation rate on the Hive blockchain decreases by approximately 0.5% per year. This reduction occurs by decreasing the rate by 0.01% every 250,000 blocks[1][2][3].
Sources
[1] [PDF] Fast. Scalable. Powerful. The Blockchain for Web 3.0 - Hive.io https://hive.io/whitepaper.pdf
[2] HIVE Exchange | HIVE Price Live | StealthEX.io https://stealthex.io/coin/hive/
[3] Where does the money on your posts come from on Hive? HiveBasics. https://hive.blog/hive-148441/@sacrosanct/where-does-the-money-on-your-posts-come-from-on-hive-hivebasics
[4] DynamicGlobalProperties - HiveSQL https://docs.hivesql.io/technical-informations/state-tables/dynamicglobalproperties
[5] Hive.blog FAQ https://hive.blog/faq.html
[6] Hive Blockchain (HIVE): A Highly-Scalable DPoS Blockchain https://learn.bybit.com/blockchain/what-is-hive-blockchain-hive/
[7] Hive (HIVE) Whitepaper - Securities.io https://www.securities.io/hive-whitepaper/
[8] HIVE: the time accumulate a scarce asset is now - Waivio https://www.waivio.com/@alex-rourke/hive-the-time-accumulate-a-scarce-asset-is-now-jp