Oauth2 as an authentication method for IMAP in Thunderbird 91.1 on ARM

Hi, seeing Thunderbird 91 in manjaro ARM I have decided to give it a try. Unfortunately, I cannot see Oauth2 as an authentication option for IMAP in it. Thunderbird has nicely supported OAuth2 for some time now (e.g., I have it on thunderbird 72 on ubuntu 20.04), so it is weird for me not to find it.

Anyone else experiencing this? May it depend on the way in which thunderbird is built for manjaro (e.g., config options)? May it depend on a missing package (and then a missing dependency for thunderbird)?