I agree that the default isn’t great, but from the link that @tal@lemmy.today had posted, there is actually a way to move the inventory button to where you want:
Image

So, they go into the menu, then press the “Exit” button.
Unfortunately, that video is already out of date again, as there’s now a general “Settings” button where the “Touchscreen Layout” button was. But in those settings, you can select the “Touchscreen” category and then that button is near the top.
Then it works like in the video again, by pressing “Add button” and so on.