Windows App will replace Remote Desktop app for Windows

I'm desperately trying to figure out if the MS Store version of Remote Desktop App will cease to function on 5/27/25, or if it's just support ending for it. I have hundreds of users that rely on this every day. We're in the process of transitioning to Windows App but haven't made it all the way there yet. I can't imagine a scenario where Microsoft would cut off the program's ability to function, considering there are literally millions of users. Any information would be greatly appreciated.