For doing 2021(year) taxes, CRA will open their NETFILE on Monday, February 21, 2022.
My Timeline for 2021 tax year was -
February 23, 2022 - Netfiled
March 3, 2022 - NOA available online and Direct Deposit of Refund in the bank.
Return showed ASSESSED immediately after filing, and Express NOA was also immediately available.