Yes. But not as much as you might imagine.
And the fluctuations of the sun are not the reason the Temperature, weather, shape of the Earth change over the millenia.
The Sun is also affected by an outside source, which causes peaks and valleys in it’s activity.
Going through the plane of the galaxy and being far away from the plane.
If the sun was causing all the Earth’s changes, then why is it that the Sun is farther from Earth in the summer, and closer to Earth in the winter?
Our whole solar system is on a merry go round circumnavigating the galaxy. We go up and down though the plane of the galaxy, and the plane is the area of highest radiation from the core of the galaxy.
Crickey mate! A little Northern Hemispheric-centric aren't we now?