https://bugs.winehq.org/show_bug.cgi?id=51715
--- Comment #2 from Hans Leidekker hans@meelstraat.net --- (In reply to François Gouget from comment #1)
We don't have the old cw-gtx560 and cw-rx460 machines anymore but the exact same failures happen have been happening on the w864 TestBot VM since at least 2022-07-18 (the exact start date is unknown).
Also they don't happen on our w11pro64_amd and w11pro64_nv AMD / Nvidia GPU passthrough VMs. So they were presumably not really tied to the GPUs after all.
I guess this might be caused by CA certificates being out-of-date on these machines.