S3 was technically not supported in 11th Gen Intel Core, but seemed to mostly work anyway. S3 is also not technically supported in 12th Gen Intel Core, and it seems to mostly not work at the moment, and it is unclear if that will change. However, s0ix continues to improve substantially in recent kernels, to the point where there doesn't seem to be a major standby battery life advantage to s3 anymore (on 11th Gen).