Chip seal is popular in some rural areas here in Texas, presumably because it's more durable. It does ride rough and slow, but I've ridden worse. I noticed recently some of the chip seal is being coated with what the construction company is calling "fog seal". Basically it just restores the feel of smoother asphalt.

Loose pea gravel and sand are often used on the local MUP to fill holes. It can really be dangerous if you don't see it coming in time to adjust. The tire tends to plow and jerk. Interesting challenge for gravel riding, but not fun when it catches you off guard.