Is the ASUS TUF 16 C5 good for gaming?

Yes for mainstream and older titles at moderate settings. The 210H-class processor and 16 GB of RAM handle most games, but the heaviest new releases will need lowered settings.

Can I upgrade the RAM and storage?

Yes. The TUF 16 chassis gives access to the memory and SSD slots, so you can add RAM or a larger drive later.

Is 512 GB enough storage?

It is workable for school and a handful of games, but large modern games can each take 100 GB or more, so plan on adding a drive.

How does it compare with the TUF Gaming A16 or F16?

The C5 sits below those models on processor class. The A16 and F16 offer stronger CPUs and GPU options, while the C5 focuses on the same tough chassis at a lower tier.

Is it too heavy to carry to class?

It is on the heavy side for a 16-inch laptop. It works as a desk machine or occasional carry, but a thinner 14-inch model suits daily commuting better.