Changing a recurring meeting from the past that we're still using

I created a recurring meeting in 2021 that we still use even though it was originally scheduled only through 12/31/2021. As I result, it's not shown in the upcoming meetings. I want to modify the settings of the meeting to not require authentication but want to make sure I don't change the meeting link since so many people use the existing meeting link. How do I do this since it is not showing in the upcoming meetings? Would changing the meeting which shows in the previous meetings tab change it for current users, and would making that change not change the meeting URL?