How does the lifespan of the most massive stars compare to that of the largest stars?
Answer
They live the shortest lives
High-mass stars operate their fusion engines at a furious rate due to immense internal pressure and temperature, causing them to burn through their fuel extremely quickly, resulting in lifespans measured in mere millions of years.

#Videos
What Is The Longest A Star Can Live? - YouTube
Related Questions
What is the primary factor determining the lifespan of a star?How does the lifespan of the most massive stars compare to that of the largest stars?What is the expected lifespan for a star similar to our Sun (a G-type main-sequence star)?Which category of normal stars possesses the potential for the longest existence?What specific structural characteristic allows red dwarfs to utilize nearly all their hydrogen fuel?What is the theoretical energy source sustaining a Dark Matter Star?What process causes white dwarfs, remnants of Sun-like stars, to remain visible for trillions of years?According to current estimates, how long is the universe expected to remain observable before the oldest red dwarfs begin to dim substantially?What process occurs when a star brushes too close to a supermassive black hole like Sagittarius A*?Which final state is characteristic of a star with an initial mass greater than $8 M_{\odot}$?Why is the concept of a 'black dwarf' currently hypothetical?