Yeah I know I’m stressing too much/overthinking, but I got kinda worried since I saw other people get invited when I submitted around the same time
Here's a longer version of what I previously deleted that I found on their website:
"After interviews, the Selection Committee will meet to review the applications of those who were interviewed during this interview block. Each application will be presented individually, with the presenter primarily providing information on your experiences, interviews, and letters of recommendation. [...] Following the presentation and a period of discussion, the chair will ask each committee member to vote. The votes cast are numerical.
After all interviewees for your interview block have been discussed and voted upon, an average score (the "committee score") will be calculated for each interviewee. Based upon the committee score, applicants are rank ordered, highest to lowest, on a list that will not be completed until the last interviewees have been discussed, usually early to mid-March.
At the beginning of each admissions year, two committee score thresholds will be set and used throughout the interview season. Because we know we will have many strong applicants interview with us throughout the year, the acceptance point is set high enough to allow us to conservatively offer acceptances after each interview block. If your position on the rank-ordered list is at or above the upper threshold set by the Committee, you will receive a letter offering acceptance.
[...]
If your position on the Selection Committee's rank-ordered list is below the lower score threshold set by the committee, you will be sent a denial letter. Following most interview blocks, approximately one-third of interviewees receive a denial. [...]
Interviewees whose committee score places them between the acceptance and the denial points on the ranked list will receive a "pending" letter, which means we will not know the final disposition of your application until after we finish our interview season. If you receive a pending letter, you will next hear from us in mid-March. In March, those highest on the list rank-ordered by committee score will be accepted to the point that our entering class is filled (and then overfilled by about 20 applicants). The next applicants on the committee score list will be placed on the rank-ordered alternate list. Finally, those remaining in the pended group will be sent a denial letter. If you are moved from "pending" status to a position on the alternate list, you will be notified in March of your alternate number."
TLDR: The committee ranks you on a numerical scale, those above a certain threshold get accepted right away, those below a certain threshold get rejected right away, everyone in the middle has to wait until March (most applicants end up here). All the people that had to wait until March are then put in a list from highest committee score to lowest committee score and accepted from the top down. Aka, if you're not interviewed until January but get a good committee score then it doesn't really matter that you interviewed last because you'll end up ranked above everyone that interviewed before you anyway.
Hope that helps!