I was using an extension for this, that seems to be unsupported in my current (109.0b4 (64-bit)) version of Thunderbird. In NNTP/Newsgroups it's really most appropriate to have "Followup" be the first button... I find myself constantly wanting to reply (publicly) to a message... Realistically, it would be better if "Followup" were "Reply (in group)" and the default as a combo button/dropdown. And "Reply" replaced with "Reply (via Email)" or similar. I'm not sure where I would/could submit this suggestion... it's exceedingly annoying that there doesn't seem to be a way to change/modify this order, let alone improve the behavior.