I budget training (actually Garmin does a good job), myself. However it is easy to overestimate if doing it by yourself.
With a powermeter I have a pretty accurate gauge of actual expenditure on the bike. A typical training ride during the weekdays is only 700-800 kcal, depending how long it is - hill repeats and endurance rides often amount to similar expenditure because of coasting downhill and warmup and cool down. A run is typically in the same ballpark.
The big expeditures are the weekend long rides (especially if I feel like doing it at tempo). Four hours at 200W amount to 2880 kcal. Then I get invited to some social thing (it's the weekend, after all) with wine and food and end up eating and drinking all of it 😁
It’s in French but it is easy enough to understand.
Well, it's still going down slowly.