As someone who lives in the US, but (pre-covid at least) regularly travels to the UK (where I am from), I wish regional listing was not allowed _at all_. It's incredibly frustrating to have to carry two phones with different App Store accounts to be able to switch between the UK and US versions of things - Uber is one of the (vanishingly) few that gets this right and why they have consistently been my default choice for rides.
You don't need to carry two phones, you can sign out from App Store and then sign in with the other country account to install new apps. Updating works for both accounts even if the second country account is not currently logged in.
Pretty bad UX, it's clear it wasn't designed for this use case, you have to go into Settings, but it works if needed.
Maybe iOS could keep on hand the different versions you have, and automatically switch based on your current location? Generalize the "lazy loading" so app developers don't have to deal with the problem themselves
