[SOLVED] How to remove this icon from the status bar? Xperia 1 VI, Android 14

Edit: I found the culprit! It is an app I've been using for years called "Notification Toggle" that has sadly been abandoned, and that seems to have a bug on Android 14 where it's icon will be stuck at 1 instead of showing the current date. I completely forgot it even had this function, because it was a default on all my phones for a looooooing time without me ever opening it or fiddling with the settings. Sad to see it abandoned, with no hope of getting this bug fixed, but what can I do...

I switched phones recently, and am very satisfied with my Xperia, but there's this one useless icon in the taskbar that annoys me a bit and that is like to hide, but I can't identify it, could someone help?

I tried SystemUI tuner, but it doesn't list it as one you can blacklist in the list of toggles, and I don't know how to find it's key to add it as a custom one. Tried turning off calendar notifications, but that's not it - it still shows. Does anyone know what it is and how to hide it? It's a minor annoyance to be sure, but it's completely useless, and I'd like it gone if possible. Thanks in advance for any help!