I don't know for sure, I guess you could calculate that. The inflation on hive is slowly dropping, I believe it is under 7% now which in 2024 doesn't seem like a crazy amount anymore. I think the supply might actually not be much if we manage to get millions of user onboarded. Also doing calculation you have to consider that holding Hive Power(HP) is rewarded with each block produce and you can get around 3% on it reducing you inflation cost.
Inflation is needed anyway to stimulate growth but it will probably be better when it goes down to like 2-4% as a normal economy should be.

Other tokens with Gas fees have inflation also and you might not have ways to earn the tokens without capital which hive does offer that opportunity.