Tell me about tank maintenance

We’ve had our Leo for 2 weeks and she’s on paper towels with a dig box for enrichment. Once we’re out of the quarantine period, we’ll switch her to a full topsoil/sand substrate. I know one of the things we love about these geckos is that they poop tiny poops in the same spot and we simply scoop that as needed. But what about full tank cleanings or changing of entire substrate? Please tell me what you do and frequency to maintain a healthy environment for your gecko.

(Pictures for tax)