I've been running snapshot images for a while now on Netgear R7800, UniFi AP AC Lite and Archer C7 v4. In my environment I have stability issues with a Nest E thermostat and 2018/2019 MacBook Pro laptops with CT firmware. If I switch the firmware to mainline, the issues are gone. Throughput is also terrible with CT. The driver doesn't make a difference, CT or mainline they both work, it's all about the firmware.
I reported many of these issues long time ago and there are no fixes. Here are my latest perf numbers from yesterday, I do try CT once in a while hoping for magic fixes but so far they haven't appeared.
https://github.com/greearb/ath10k-ct/issues/138#issuecomment-778880989
I started a thread too before I found this one. I struggle to understand the decision to default to CT when there are many threads with similar issues reported.