Does my motherboard support this NVMe SSD?

No.

The official manual from Acer does not provide specifications and the Acer support page for the ATC-710 is also missing that information.

However, Crucial says you can't run an NVMe SSD, only SATA, confirmed by UserBenchmark, which matches what Ron found in the earlier answer.

Don't spend any money on NVMe unless you can get Acer Support to confirm it works, but SATA-III SSDs are safe.