No, the Sun is not much larger than all other stars. In fact, it's a medium-sized star.

Here's why:

* There are many stars much larger than the Sun. Some stars are hundreds or even thousands of times larger in diameter. These are called giant stars and supergiant stars.

* The Sun is considered a yellow dwarf star. This means it's a relatively average-sized star, although it's the largest object in our solar system.

* Size is relative. While the Sun is massive, it's dwarfed by some of the largest stars in the universe.

To put things in perspective, here are some examples:

* Betelgeuse: A red supergiant star in the constellation Orion, is estimated to be about 1,000 times larger in diameter than the Sun.

* UY Scuti: The largest known star in the universe, is estimated to be about 1,700 times larger in diameter than the Sun.

So, while the Sun is a large star, it's not exceptionally large compared to the vast range of stars that exist.