Is this mold or fungus?
I am new to gardening and just built a raised bed about a month ago. I started noticing these little white fuzzy specs around the spots where I plant my herbs (pictures attached). I was wondering if I should be concerned, and if it is mold or fungus, what I can do to get rid of it. Thanks!
I do not think you should be concerned. Maybe let the solid dry out a bit between waterings. Those are only there because of the very damp soil.
This image of soil appears to be quite damp.
Mold and fungus thrive in moist conditions.
You can treat the soil with a fungicide, Neem Oil is a good choice.
Here are some links for you.