I would assume it has to do with the plethora of issues in how the camera isn’t accessible through the official APIs.
Still, yeah, this has me essentially looking into getting rid of my Fairphone and buying another one, more or less exactly what this phone should not be about. But I need ARcore on at least one phone I own - and I have no use for owning two phones.
I guess the people in this forum, who are only users of Fairphone, will never be able to answer those questions.
Maybe unless they contactsupport, get an answer and care to share the response here.
Has anyone tried this guide?
I really want to get a FairPhone as I love what it stands for, but without AR support (dev here), I can’t justify such a purchase.
Hello!
Just tried the guide. It crashes when I launch HelloAR…
Linked is the adb logcat if you want to investigate 
Short extract:
11-15 16:55:23.615 4708 4708 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
11-15 16:55:23.615 4708 4708 F DEBUG : Build fingerprint: 'Fairphone/FP4eea/FP4:12/SKQ1.220201.001/SP1N:user/release-keys'
11-15 16:55:23.615 4708 4708 F DEBUG : Revision: '0'
11-15 16:55:23.615 4708 4708 F DEBUG : ABI: 'arm'
11-15 16:55:23.615 4708 4708 F DEBUG : Timestamp: 2022-11-15 16:55:23.311223752+0100
11-15 16:55:23.615 4708 4708 F DEBUG : Process uptime: 0s
11-15 16:55:23.615 4708 4708 F DEBUG : Cmdline: com.paramsen.helloar
11-15 16:55:23.615 4708 4708 F DEBUG : pid: 4494, tid: 4533, name: UnityMain >>> com.paramsen.helloar <<<
11-15 16:55:23.615 4708 4708 F DEBUG : uid: 10008
11-15 16:55:23.615 4708 4708 F DEBUG : signal 6 (SIGABRT), code -1 (SI_QUEUE), fault addr --------
11-15 16:55:23.615 4708 4708 F DEBUG : Abort message: 'jni_helper.cc:19 'vm' Must be non NULL'
EDIT: I’m running Fairphone OS but with almost all the google stuff disabled. Don’t know if there is a dependency I’m missing 
EDIT2: Seems the same error they have with a.o. Samsung S8.
Thank you so much for testing this. Shame about the results. Fingers crossed for the FairPhone 4+/5
what a crap. February 2023, we are not further with this topic? no chance to get AR? 
this niche topic will be at the bottom of the developer’s priority list. there are currently and again and again completely different problems that need to be tackled.
I bought the Nreal Air glasses, they need the phone to have usbC 3.0 with display port, but also other features in the processor to fully work. I wonder if anyone have already tried this setup and can share the experience. did it worked? just de screen casting or the AR experience as well?
Moved your post here (please read above) as AR will not work at all and I guess with this the glasses are kind of useless…
And welcome to the community
Finally an answer… I didn’t even thought about ARcore. Thank you!
I would love to move to fairphone but in this case it wouldn’t make sense. I’ll wait for the next version hopefully with the increase of AR products this year, they understand that both DP and ARcore will have to become standards. And because both are not new technologies I believe the licenses wouldn’t increase a lot the final product let’s wait and see.
No news about this?
Every day we have new museums apps that shows the information vía AR. We need this to be fixed, please.
As this is a user forum it does not help to state this here, if you need this fixed contactsupport