OnePlus 7 Pro owner here. Currently running the Pixel Experience ROM. Pretty stable. Although I haven’t really tried NFC as there no use for it where I live. You can check out the xda thread.

https://github.com/fedidb/fedidb-ce

Seems support is being deprecated, but they say it should continue to work for the foreseeable future: https://code.visualstudio.com/updates/v1_80#_deprecation-of-python-37-support

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I personally use Droidify. It’s an f-droid client.

As a OnePlus 7 Pro owner, I absolutely love it. No front camera cutout was one of the reasons I bought it.