My interpretation/memory: This was set up as a preorder and they said 90days lead time from when they were released to production but that took a little longer with final design tweaks. I think the 90days and 4-5+ weeks thing is out the window for the Tikkas but sounds like the remaining folks from the preorders will likely get their stuff in May/June. Tikka was the bulk of the preorders and with those in mind they appear to still be shipping out orders from the first day of that preorder (where many orders obviously came in), ~Dec 21. Keep in mind there are likely alot of orders placed Dec 21-Early Jan after which point I think the pace slowed down, but there are likely alot of stocks from late Dec that still need to ship out. So in the case of a Tikka ordered a month ago you would very likely be waiting a bit cause they have numerous on backlog.
Being you said Remington and those reportedly had less orders in, and Form indicated 90days is likely closer to accurate for the Rem version, maybe your delivery will be closer to actually ~90days being you just ordered last month.
That help at all?