Hey, I had the same problem and got it fixed yesterday, so they dont show up in the XBOX App anymore.
First I started to download the games (BFV and TF2) that were wrongfully listed as Installed through the EA App and immediately canceled the download.
This worked pretty much instantly for BFV but not TF2, so I used the "App Recovery" from the EA App which solved the problem from TF2 as well.
(Don`t know if it is relevant but I had the XBOX App open while doing the steps above.)
To find the "App Recovery":
Click the three lines in the top left corner of the EA App
There is a "Help" section, which includes the "App Recovery" option
Hope this works for you as well, but I can`t promise it 🙂.
