Is this Soil Mold Safe?

She looks good to me, I wouldn't do a thing

No, that mold obviously doesn’t spread on plants since your stem is completely clear. Don’t panic and apply simple logic 😂 Happy grows

This looks like a type of saprophytic fungus, meaning that they feed on the dead organic material in the soil. They won't feed on your plants or cause any direct damage to them. I would just break up the top surface of the soil a bit with a fork and the problem should sort itself out as it dries.

Spray with hydrogen peroxide, wait till dry, repeat if needed. Then put a layer of perlite or sand(not to fine or play sand) on top 2cm. And use 30 % perlite in your soil next time for better aeration. Much success 🤞and Happy Growing