A gravitational acceleration 50 times that of Earth is almost the limit for a main-sequence star.
A main-sequence star is the primary stage in a star's life cycle, meaning an ordinary star that generates light and heat through fusion.
There are indeed many stars with extremely high mass in the Milky Way, the largest of which can be millions of times the mass of Earth.
However, these celestial bodies share a commonality: their mass is large, but their volume is even larger.
For example, the Sun's mass is approximately 330,000 times that of Earth, while its volume is 1.3 million times that of Earth. This means that even for a giant star like the Sun, its surface gravitational acceleration is only about 28 times that of Earth.
There are, of course, many stars larger than the Sun, but they are even larger, and their surface gravitational acceleration is even lower than the Sun's.
