What is the cons of staying on the Macrium Reflect free version?

I asked a similar question before but got no response. So I'm attempting to rephrase it: is there any cons to using Macrium Reflect free after 2023? If the software works, why move to either the subscription or license?

I'm in the process of finally having the drives to setup 3-2-1 backups. I've heard great things about MR free but I'm wondering if I NEED to get the latest version with paid license. I understand it won't be supported after 2023, but not sure what I'll lose if it works well enough now.