If you are on a M-series MacBook and aren't running a 3D Benchmark the entire time, your Mac is broken if it is dying after 2.5 hours.
Have you checked your Battery Health?
If you have an intel-based Mac, it's the same expected battery life as Windows and 2.5 hours on an intel MacBook battery sounds decent for something 5+ years old.
Have you checked your Battery Health?
If you have an intel-based Mac, it's the same expected battery life as Windows and 2.5 hours on an intel MacBook battery sounds decent for something 5+ years old.