I'd be surprised. Granted, not quite apples-to-apples, but I have the original Framework 13 chassis, 13th-gen Intel mainboard, original battery, and I've never gotten more than 5 hours or so, 6, maybe, at most, on Linux. Yes, the new 13 Pro comes with a larger batter, and maybe the new mainboard is more power-efficient, but 24h+ sounds way too optimistic.

Panther lake is substantially more efficient than your 13th gen and they increased the battery capacity by 35%. They claim 20h, not 24h, and that 20h is for video watching, not general use.