Then why I feel that I can handle fewer tasks with the same subscription over the last 5 months?
What model and effort are you using? With Opus 5.5 on medium and high I'm not anywhere close to hitting limits on my 20x sub. Meanwhile with Fable I hit it constantly
You have become a lot more ambitious with what you ask the models to do. We all have.
If you use CLI, all your transcripts/metadata/etc should be in ~/.claude/ and ~/.codex/ or ~/.pi/, etc.
Ask your agent to make you a visualisation, heat map, whatever. I bet it's just that you're using these models more, and for more complex tasks.