I am lucky to live in a house with a yard (where I've had to water garden plants daily) and near a trail (I've ridden 130+ miles on my weak-but-geared ebike, mostly shorter trips though) but there isn't much for me to do around that I'm aware of, especially viable without a car and without spending money.

So that's why I think external factors are a bigger part. I even did go on a more-than-an-hour trip and it didn't magically 'click'. Though I had to recover for a few days afterwards (and weather, including heat/sun is a common thing stopping me, also places that aren't open in the afternoon). Also that and even shorter grocery trips I feel shorted (both for what I did and did not buy) due to high prices.

Though it's hard measuring status especially longer-term with added complexity. It's entirely possible not doing the things would make things feel even worse, but there's no reliable way to actually tell.