Just realised a flaw in my Note10+, not sure only me or what. If charging horizontally on genuine samsung wireless charging stand, the s pen will be randomly triggered, it would not fully charged overnight then. At first I thought it's the magnet on flip cover causing it, but after removing the case also same thing happened. Probably due to the EMI from the wireless charger while phone sitting horizontally on the stand. No problem if sitting vertically (but Note 8/9 can't charge vertically with case). If u got this wireless charging stand, probably can try out...

Try put ur phone horizontally instead of standing vertically