Please share the steps you followed to install the Google Play Store on the Fire HD 10 Plus. I downloaded, installed it and it shows up on my app screen, but when I click on it, it just flashes once but does not open. I did check to “allow apps from unknown sources.”
I also researched a number of web sites that describes various methods, including installing several apk’s. One even suggested the “easiest” way is to download a Fire utility onto your PC to export the downloads to the Fire. But the PC blocks the download and my Windows Firewall prevents me from adding an exception. But all this has been entertaining for a few hours.
I’ll report if I make any progress. But as of now, there is none.
BTW, I sideloaded Google Play Store apps onto earlier Fire versions several years ago. It was a no brainer back then. Amazon has increased the difficulty of even accessing the Google Play Store from the internet - they block the Play Store site - never mind downloading apps from that site.