I'm not exactly sure what that means. Does it mean that an updated package or config change messes up the switches on those models? I noticed that the WRT3200AC isn't listed, yet it's no longer being updated.
Why would the bleeding edge snapshots continue to be compiled but not the stable snapshots, as I presume the snapshot builds suffer the same fate?
I'm guessing that kernel 5.15 won't be added to current stable builds, so are the only options to compile it myself (beyond my skill level) or use a snapshot build (I've found these to be problematic in the past, which I guess is why they're snapshots and not stable)? I guess what it means is that currently, Linksys models do not have stable builds that function correctly and so official support has ceased, presumably until the next stable release (which could be months or years away, I suppose).