OP, Do you have World Update III installed? Look in your Content Manager. Those are not installed automatically. Maybe that is why EGSS isn't showing up for him. Yes, it shows up for me.
1. In Windows go to the Microsoft Store.
2. Click on Library in the lower left corner.
3. Click on the large blue button that reads Get Updates, in the upper right.
4. Wait for the update to finish.
5. Start MSFS as usual. It will find a second update, all normal. Install that update.
6. MSFS will then load as usual. Now go to your Content Manager and there are at least 4 things to update there depending on your MSFS version and installation.
So there are three parts to this one update.
If you use MSFS Add On Linker, then nothing needs to go into your Community folder. Or I wonder how hard is it to cut and paste folders from Community to Desktop and back again.
That's because Wu7 is an automatic download and install. The Australia World Update is in the Marketplace. What is your MSFS version number on the top of your screen?
How are the default seasonal textures in XP? Oh, wait.................
How is the default AI traffic in XP? Oh, wait...........
Maybe it's XP that has indeed been copy catting many of MS's features, and they are still WAY behind.