Depends where you were staying of course, but 300 Bt fr a Tuk Tuk in and around the city is very excessive, even with today's inflated prices.
Grab is the way to go in Chiang Mai. Much cheaper, efficient and modern air con cars. You can usually get a car within a few minutes, even late at night, including from more out of the way places like Adam's Apple. Just don't book to or from somewhere where a load of tuk tuks hang out
Even if the farang/tourist gay scene is not what it was 15 years ago, Chiang Mai still has a lot going on, especially online via the apps. Just avoid late Feb to Late April when the pollution is terrible and it's ridiculously hot. Things start to improve after the Mango rains in May.