But I do like the idea that 1 year of added Doge Coins in 100 years is just 1 % inflation
That's the case for Grin, with it's pure linear emission of 1 per second forever.
compared to 1 year of added Doge coins now is over 12% (A quick estimate off top of my head)
Not the case for Dogecoin, which had a 20x bigger reward in its first year, so that inflation was down to 5% for the 2nd year and is now closer to 4%.