I got one of these "someone request a password reset" mails from Facebook yesterday. I don't think I've had one before, and my email on its own domain I've had

I got one of these "someone request a password reset" mails from Facebook yesterday. I don't think I've had one before, and my email on its own domain I've had for ~20 years doesn't seem to be one people type by mistake. I thought it was probably phishing, yet the links all looked legitimate, including the one for password reset and the one to tell Facebook I didn't request the reset. So I thought it might be a homoglyph attack (a URL that looks legitimate but isn't because it's using alternate characters that look the same or similar), and rather than click the link saying I didn't request the password reset, I logged into Facebook hoping to find a notification or something in the account settings logging that it was a genuine request. I was surprised to see no notifcation, nor anything in the account settings and security area. I was also surprised to see I needed to login again, as I thought Facebook kept a long term session open for longer than the 2 weeks since I'd visited it previously. If it was a tricky method to get me to login to Facebook again, it worked! But I didn't stay long after I didn't find what I was looking for.