I'm using Windows on 3 different gaming PCs with a 3070 (PM 5.5c), 5700XT (lolminer) and 1660Super (PM 5.5c).  No issues with stability, shares...nothing.  I'd post an image of my pool results, but I'm not sure how on this site:  

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                        Reported  Current  Valid  Stale Invalid
lolminer5700XT     51.1    53.3     48   0   0   13 minutes ago
rig1660             32.1         36.7     31       0   0   13 minutes ago
rig3070             61.9    65.6     55        0   0   13 minutes ago