It's an awesome phone, but I'm skipping it for now. I'll address a few of your points, then add my own thoughts.
3 Cameras not as good as the N10+.
4.No warranty at the moment.
5.No IP rating.
6.Slower charging speed compared to N10+.
7.Lower screen resolution.
3. Cameras are so close now that it's splitting hairs among flagships. I know the ROG II camera gets mixed reviews out of the box, but the sensor itself is pretty good. There's also a Gcam port for it that many people like better (though comparison photos are hit and miss for my tastes with it). I also prefer using manual modes, which isn't dependent on software and AI stuff to get a good photo.
4. Are you in the U.S? If so, you can buy the U.S. version to get a warranty here. It's still rolling out worldwide I think, so check your local retailers for more info.
5. I've yet to have a phone with an IP rating. Even if it was rated, I'd treat it no different than my past phones. So no skin off my back. Remember, no manufacturer warranties water damage, so it's not advisable to rely on that lab test rating.
6. This one takes a bit of effort to wrap your head around. Understand that as Li-ion batteries are charged, the charging rate slows after you hit about 75%. The closer you get to being full, the slower it goes. Think of it like filling a bucket from a water hose. If you keep it at full blast, water will start to spill out before it's full. So as it gets full, you slow the water flow and can fill it right to the brim.
Now compare the Note 10+ 4,300 mAh battery to the ROG II's 6,000 mAh battery. With the 45W charger running full tilt, the 10+ takes just over an hour for a full charge, including the slow down as it fills. The ROG II is advertised to charge 0-4,000 mAh in 58 minutes. It hits 4,300 mAh in almost the same time as the Note 10+. How can it do that on the weaker 30W charger? (Note that's for the global version. The Tencent version comes with an 18W charger, not sure about Indonesia.) Because it hasn't filled enough to start slowing the charge much. So from a real world perspective, you can get the same usable capacity in almost the same amount of time, and do so with less stress on the battery. Let's also not forget I compared that to the 45W charger that must be purchased separately for the 10+. Since that only saves about 5 minutes on a complete charge, most people are likely to stick with the stock 25W charger. That easily puts the ROG II ahead in charging performance.
Asus also goes one step further for those that insist on overnight charging. You can set the time you want it to be done, and it will adapt the charge rate to go slower and still finish when you're ready to get up. Again, this puts less stress on the battery, and that's important with sealed batteries.
7. Screen resolution... I'm not too concerned. With such small screens, anything over 1080p is overkill anyway. I doubt you'll be able to notice a difference (I can't even notice a difference above 720p on my V20).
Now for my thoughts, and why I'm no longer considering it.
Network compatibility. This is a huge issue in the U.S. It doesn't have full support on any carrier. The only way to use it on Verizon is as a data only device, then use Google Voice for calls and texts. I was willing to work with that, but there's no VoLTE or Wi-Fi calling. That means as carriers start dropping 2/3G support in the next few years, this phone won't be able to make any standard phone calls, including 911. With how commonplace mobile phones are now and landlines going the way of the dinosaur, this is just unacceptable. The phone was basically obsolete by design before it was ever released. To add insult to injury, those functions do work on the Tencent version in China. Asus is making a choice to not support either protocol on the U.S. version. Anyone that has contacted them gets the same response, no plans to support even VoLTE.
I'm keeping an eye on it and all the discussions at XDA. I know they have looked into bypassing and getting VoLTE working, but no luck yet. It's a beast for sure, but U.S. buyers beware.