How will Bitcoin be inflation free? In the research paper, the author(s) mention(s) the following:

Once a predetermined number of coins have entered circulation, the incentive can transition entirely to transaction fees and be completely inflation free.

What does this mean?
I understand that once the 21M Bitcoins are minted, the incentive will only be to earn transaction fees.
I do not understand the part of fees being inflation-free.
Inflation is newly mined coins added to circulating supply. When block rewards become zero and transaction fees are the only incentives for miners, there won't be any new coins added to circulating supply.
According to https://www.viewbase.com/inflation (In last 24 hours):
1031 BTC mined
Circulating Supply of Bitcoin is 18,504,668 BTC
% of newly mined coins(24h) is 0.006%
Annualized inflation rate is 2.03%