Perhaps the right question is whether this intermittent gapless issue on Qobuz Connect manifests on any non-WiiM renderers. If not, and it's limited to Qobuz Connect on WiiM, then it could require a fix on WiiM's end, on Qobuz's end, or perhaps on both. There were a few issues that showed up with QC-WiiM during the beta testing process, that were mostly if not completely addressed via a firmware update pushed by WiiM.
I've asked the question over at Qobuz Club to see if anyone has seen this issue on any non-WiiM renderers. Will let you know what responses I get.