A couple apps you may want to download from the app store are Paint Legacy and Power Tools. In a web browser, login to a Microsoft email address such as a Hotmail account. Then go to the web version of the app store and search for your app. Then click button "Get in Store App" and it may download and install. This can avoid using the app store app which is now built in to MS Windows.
After logged in to a Microsoft account on web browser (to hotmail.com or live.com or other Microsoft email hosting), use the following links:
- MS Photos Legacy ( https://apps.microsoft.com/store/detail/microsoft-photos-legacy/9NV2L4XVMCXM )
- MS PowerToys ( https://apps.microsoft.com/store/detail/microsoft-powertoys/XP89DCGQ3K6VLD )
The download window claims there are in-app purchases available in the Photos Legacy app.
Be aware that Power Toys will add items to context menus such as File Explorer.