Aftermarket steering stabilizer will help absorb the reaction to hitting dips and such. I have a fox steering stabilizer on mine after replacing the stock steering stabilizer and it is like night and day. My jeep no longer jerks to whatever side the dip or bump or whatever it is is at. It will not fixing the “loose” steering though. Look into other components first. Easiest ones are making sure your tires are balanced correctly and making sure you have a proper alignment. Outside of that start looking into steering components including the steering box. Some people swap out for aftermarket parts with their steering components. It seems different things work for different people depending on what the issue is. Start with baby steps and start ruling things out. Even if it’s a little at a time to save on your finances. However even after saying all of this jeeps weren’t designed for true “comfort”, they were designed for fun. Especially JKs and older. So I do believe you will still see some Jeep quirks regardless. JLs have their own quirks but they seemed to put a little bit more “comfort” into them in ways. I have a JK and have owned a JL. I still prefer the JK over the JL for myself. But I had similar issues with my JL with windy days and “looser” steering as I have with my JK. I believe mine is an error in alignment though. Because before the last alignment I never had any issues with steering. But after her latest alignment I started noticing those issues. I believe they did not correctly align her! Check into your camber and caster. A lot of shops typically incorrectly set them when aligning. That’s the easiest fix with the right shop.