I'll have to test this out and report back. I've only had the retail release for 2 days and haven't done any IFR flying in the G1000 yet. One of my biggest gripes from the alpha was that basic avionics functions were missing from the G1000 and even the Garmin 430 which is a classic GPS.
My suggestions come from basic functions in the real G1000. It's designed to do practically all of the work for you. You are capable of looking up approach plates, frequencies, and weather information en route without needing anything other than the 2 screens in front of you. It's incredibly handy. It's frustrating that the sim isn't quite there yet but I understand it's a huge work in progress.
Please do. During my tests, I always had to tune to the ILS frequency manually. I've asked in a flight sim Discord and someone said it has to be a bug, the same with the main display getting stuck / frozen when displaying FLP windows.
The G1000 doesn't appear to be fully modeled, either. I don't have any real world flight experience, but I watched an autopilot tutorial the other day and the guy in there said there's several buttons that don't do what they are supposed to do. For example, apparently, in a real G1000 you can select any airport entry from the FLP page and hit the "direct-to" button as a confirmation of sorts to instantly set a course to the selected entry - doesn't work in the sim, that button will always bring up the "standard" direct-to dialogue, with the playing having to dial in the airport code from scratch via the dials. Also, the "menu" button apparently doesn't do what it's supposed to. In the sim, it only has a function in a few sub menus. I know it for a fact it works when the FLP window is active, but there, almost all of the options in the "menu" overlay are greyed out. You can delete the flight plan and you can activate a certain leg (only if you selected it prior to pressing "menu", otherwise, it's greyed out, too), that's it.
You said the G1000 could even look up approach plates. This seems to work to a degree (please note that I'm a total noob and may be spouting complete nonsense here) if you mean pressing "procedures" and then choosing "select approach". It will then populate new waypoints in a "approach" subsection of the FLP window and calculate a new GPS route that the autopilot will follow well enough. But it won't set approach altitudes for any of those new waypoints (I've seen those written down on SkyVector's plates). Each approach waypoint has a altitude column, but it's empty. Is this how it's supposed to be?
Edit: I've looked further into this and it seems like this is expected behavior when using glidescope. Is that correct?
By the way - apparently, you *need* to have a proper flight plan set up (departure and arrival airport at a minimum) to be able to select an approach. If you just start anywhere on the game world or delete your flight plan while flying, it doesn't suffice to just select an airport via the "direct to"-menu. If you do that, the "select approach" menu will be empty (you can't select a runway / transfer) despite you having an active GPS nav route to that airport. Seems like another bug to me, but I can't tell for sure. How does it work in the real G1000?
Edit 2: I've searched for "G1000" in several flight sim subreddits. There are lots of threads about it and the verdict seems clear - the in-game G1000 is buggy, causes performance drops and currently has half the functionality it supposed to have, possibly even less. It's on the game's development roadmap, but not currently marked as "in progress".