@sjSJ27, please treat everyone opinions as advice which you can choose folow.
I similar case to you before and I got COPR in 2020 even my IELTS expire. You know they ITA you after reviewing your application, and they are so so so slow. So likely your IELTS expire while waiting them. What meaning I have is that they review your application and accepted based on the submission (and IELTS valid at that time) and ITA you. So, you no worry. You are through.
If you doubt, you can still message them (
https://secure.cic.gc.ca/enquiries-renseignements/canada-case-cas-eng.aspx). Like you, I worry in the past but I can tell you you ok, but you can check them by message them anyway.