In the comics, Captain America survives Thanos' actions. Thanos' main focus was often on other cosmic threats and obtaining the Infinity Stones, not specifically targeting Captain America for elimination.
In the comics, Thanos kills Captain America in a very powerful and unexpected way. He uses his immense strength and cosmic powers to deliver a fatal blow.
A frequent theme is the idea of two heroes finding love and support in each other. Given their similar goals of protecting and doing what's right, it makes sense that in fanfic they would find a deeper connection. Also, the theme of overcoming differences, not just cultural but also in their powers and leadership styles, is quite common.
Yes, there are some out there. You can start by looking on fanfiction platforms like Archive of Our Own. Some stories might explore their friendship in a different, more romantic light, with interesting plotlines and character development.
Captain America has indeed yielded Thor's hammer in the comics. It happened when his character's integrity and moral compass proved him worthy of handling such a powerful weapon.
Captain America has lifted Thor's hammer in the comics. It's often a moment of great significance, demonstrating his pure heart and heroic nature. These scenes add depth to the characters and the overall narrative of the comics.