Me too got an update this morning.My LG G5 on Bell updated to Oreo last night. Software Info Android Version 8.0.0, Security patch level Aug 1, 2018. Kernel 3.18.71
The AP is already set, but I'm not in canada so it's not the ones you set me.No issues here at all. You might need to manually specify your AP though network settings.
https://apn-settings.com/canada/apn-settings-bell-mobility/