Please read this carefully. I will always update this post once I have word that there is a new GCam or XML available and after I have tested it to make sure it’s worth it. I would also like to thank all Telegram chat moderators and GCam developers for all their hard work.
As of this moment, 11/15/2021, this is the best version, please select the snapcam.
Here is the link for the GCam file for download:
https://www.celsoazevedo.com/files/android/google-camera/f/changelog1533/
The Link to the new XML file to go along with this is here:
https://drive.google.com/drive/folders/1XZadN3ym56s8hXXgCK8m8FjBC08MWB3K?usp=sharing
Below is the older GCam update.
** Download the file that ends with snap cam.apk **
Once you have installed the GCam apk, use this XML file for best results. You can download the file here:
https://drive.google.com/file/d/1ZWET-1Cjkq2QREw6L7U2e2jcM1Vd5gFz/view?usp=sharing
If you would like a full tutorial, check out my video here:
If you would like to see sample photos using this GCam and XML setup, please click here:
https://www.thesmartphonetraveller.com/#/oneplus-8t5g-w-gcam-wichaya-311-nrg-wichaya-xml/
Altered Tech 
THX for these tutorials to upgrade the camera from OnePlus 8T with GCams, but how to get the XML file into the latest version MGC_8.1.101. The doubleclick from your Youtube video doesn’t work here
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Give full permissions to the app or add the XML file in the settings
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Thanks for the quick answer, but that is still my problem. The app has full permissions but I don’t know how I can add the XML file. I don’t find a menu point where I can choose for the downloaded XML file to take these settings. On your tutorial (with older version) a doubleclick will open a window and there you can choose the XML file, but not on the new version. Can you describe where exactly to add in the settings that XML file? Thanks again
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