Question about Dreame X50 Ultra Complete

The humidity is adjustable. At the highest setting, the floor really gets soaking wet! So it's perfect. However, it is advisable to pre-clean by hand (e.g. with a brush or a rough cloth) if there is dried-on animal drool. This is no different to the traditional bucket/mop method.

You can set the humidity to maximum and to intensive cleaning. Furthermore, the robot can pick up and use an additional cleaning agent to support the cleaning process.

We also have a dog and its drool and paw marks are reliably removed, but this may of course be different for you.

You can set humidity levels from 1 (slightly dry) to 32 (wet) in the app.
I find level 16 a pleasant level of humidity for the kitchen floor. But that's a matter of opinion.

Regarding dog slobber, I don't have a dog. But the robot recognises dirt, and if it's very dirty, it cleans the area several times until it interprets it as clean. I don't know whether this also works with drool. But in general it works well (for a robot).

You can set a moisture level in the app, but I have no idea how to judge this objectively. You can also set 2x, 3x cleaning, then it does the cleaning in different directions. With more moisture, it has to go back to the station more often to get water (one tank filling is good for 20m2 by default).