This shows that my withdrawal address was changed by someone other than me and then changed back recently this should be impossible for me to do on my end
If your account is compromised, you can go ahead to open a support ticket and request the FreeBitco.in team to temporarily lock your account by security reasons.
Then, you have to clean up your devices, before doing required account recovery steps from Freebitco.in team. If your device is still infected, recover your account will not help anything because it will be compromised again.