@Suty Thank you for clarification. I only have installed uBlock Origin Lite (2025.619.2143). I will try to completely disable it on Windys webpages to see if that helps.
@kubapelc thank you, this seems to be very connected indeed. The problematic laptop has an integrated Intel GPU and a separate Nvidia (the exact model probably does not matter). I have no idea which of the GUIs causes the problem of the whole laptop completely freezing.
This could be it, yes. I have these errors in the journalctl that coincide with the one time when my laptop froze because if windy (1 day before I wrote in this forum):
apr 17 14:15:30 myusername kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 12:1:84dffffb, in chrome [5748]
apr 17 14:15:51 myusername kernel: i915 0000:00:02.0: [drm] GPU HANG: ecode 12:1:84dffffb
This would indicate that indeed the Intel graphics card is freezing and not Nvidia.
@landrae Thanks for the confirmation that I am not the only one with this weird problem.