minute yellow bugs on Clematis flowers
The insects you are seeing are thrips.
There are good ones (predators) and pesty ones. We can't say exactly which ones these are, but we don't see damage and so assume they are the type that eats pollen.
Either way, they are not of great concern and other bugs in the healthy landscape (little no pesticide use) help to control them so there is nothing that you need to do.
Here is our page on thrips: https://extension.umd.edu/hgic/topics/thrips-flowers