It's really strange, you see people claim the same on the Codes subreddit. I can also run Astra xHigh at least for a few days with my 20x, but I don't use any of the token hungry patterns like orchestrators and such (only the code reviews have a skill using either 4 or 8 sub agents, some being Terra/Luna and none Astra). I did have a month ago a period or 2-3 days when usage was draining like 5x faster than usual, maybe some people are seeing smth like that? But more likely many sub agents and other patterns eating tokens.