Unless you are a pro, you should not be using a 36-tooth chain ring. Like others have said, for that reason many frames don’t even work with 36-teeth chain rings.
A 30 is fine, and I certainly wouldn’t go larger than a 32-tooth chain ring. Remember, you are not your gearing. More teeth doesn’t make you faster. And you’ll miss climbing gears on a mountain bike much more than gears on descents. Even with a 28-tooth chain ring, you can easily reach speeds of about 35 km/h pedaling at 90 rpm.