At the end of Spider-Man No Way Home Peter is 18 Years old Kate is 22 Peter is 4 years younger but it Doesn’t Matter At all because Peter has a Lot of Experience and he is More Mature than Kate Bishop I mean Kate does Become Mature at the end of Hawkeye but let’s be honest Peter is way more mature and there are a lot of things that Kate can learn from Peter because He’s been a Superhero Way longer than Kate has and they have similar personalities so yeah they would be cute together.
At the end of the day, I would be equally chill if all of them just became future friends. Other than Yelena, I would really want to see what you could do with a Kate/Peter relationship (platonic or romantic). I just think these two characters would get along really well in real life.
I think it would be really cool if Kate Bishop was involved in the next Spider-Man movie even if it is not major.