I admit that the word "left" is too definitive in this case, but apart from that: Potato potato. My claim still is that there is correlation between the charts and how many people play the game. Saying differently is mostly spin. It does matter for Frontier, and it does matter for the future of the game, and thereby it matters to the ones playing and loving the game.The problem with Steamcharts is that we don't know if people are leaving the game (the guys who post angry 'I quit' threads) or if people are spending less time in the game. Personally I guess it's a combination of both.
Looking at Steamcharts and saying that 2/3 of players left due to Odyssey is obviously nonsense. When Odyssey was new I played it for ~1 hour each day. Now it's maybe ~0,5 each day. If everyone else would be doing the same it would show 50% less players on Steamcharts. It doesn't mean lots of people are leaving though.
When something is new, lots of people try it simultaneously which leads to large numbers on the charts.
There also is the thing about Summer, end of lockdown in many countries and football which obviously means people are spending less time in the game.
AND some people are probably annoyed by the state of Odyssey and took a break from it until the game is in a better state.