So do you all use level jacks of some sort ?

Most of the campgrounds I use in Oregon have pretty level sites .. haven't had to level my RV in many years.

Nope. Level by boards/legos. TT doesn’t bounce enough to use stabilizating jacks so I removed them. Saved 40 pounds.

Once we have our coach positioned on the site, the first thing I do after turning off the engine is hit the "Auto" button on our Bigfoot jack panel. While the jacks are taking care of leveling and stabilizing, I'm outside connecting the power cord. As soon as the levelers are done, one of us runs out the slide and we're essentially done for now. Water and sewer get hooked up as needed, or for an overnight stop, often not at all. On a rainy day, total outdoor time can be less than 5 minutes. We would not have another coach without hydraulic jacks, although auto-leveling would not be a requirement. I installed Bigfoot manually operated push-button jacks on our previous coach and we liked them nearly as well as the current auto-levelers.

I have Equalizer Leveling System on my MH.
When I get in my site I push Auto Level and the air bags dump, the jacks extend and level the MH front to back and side to side. This system works great and I have not had any problems with it in the 14 years of traveling. These jacks will raise my MH completely off the if I wanted.

My RV did not come with jacks so I use 2 x 8 planks with tapered ends to level the RV when necessary. The "bouncing" doesn't bother us, I don't know if we are just used to it or what but we just don't notice it.

We have a light-weight travel trailer. When we get to our new site, we level from side to side with blocks as soon as we arrive. It takes us one time and we are done. Front to rear is handled with the tongue jack. After leveling is done, we deploy our stabilizers to remove the wiggles from walking around inside. The stabilizers are lowered to the ground and then we turn the crank 2 full turns to tighten it up. The entire process usually takes 5 minutes, tops. As far as staying indoors the entire time I am at the campground is entirely foreign to my way of thinking. We go camping to be outside. We prepare our meals, eat them and wash our dishes outside. I can stay inside at home when the mosquitoes are bad r when it is 95 degrees in Wisconsin.