@wfscott
After my initial panic, I did realize I could go into file manager and delete the plugin, so that’s what I did in order to get logged in again. When I reinstalled the plugin, somehow 2FA was still enabled (not tech savvy enough to know why that would be, since I deleted the entire folder) but this time around it worked–once I entered my password it took me to the next page with the 2FA prompt. (Which is what wasn’t happening before.) Since I still had the authenticator app set up on my phone, I was able to log in just fine and it’s been working as intended since then.
This entire sequence of events happened without me changing anything else (themes or other plugins) so I have no idea why it works now when it didn’t before, but I’ll take it.