This was wonderful! I loved the direction you took with the prompt. Some of my favorite lines:

This time it’s some contemporary abstract art museum he’d found on Instagram. He’d shown Mingyu the profile and Mingyu had laughed, eyes shooting open wide as he covered his mouth with his hand. “You’re taking Jun-hyung there?” he’d asked. “That’s like throwing him straight into hard mode.”
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Minghao loves art. He believes in the value of every piece, no matter how simple or silly it may seem. He always tries to scope out the artist’s meaning and intention, careful eyes picking out each careful detail, and thinks of his own personal connection to it.

But sometimes he has to admit that he truly doesn’t know.
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This was so cute and humorous, and I love your writing style. The flow of the story and the dialogue were great. Thank you for writing this!