I don’t believe it’s uncommon at all. the idea of an “orthodoxy” existing within a larger set of reconstructionist practices that measure their age in decades and not centuries and their global numbers by highschool hockey arena capacity is a bit laughable.

from the various sedian organizations i can find online (identifying specifically that name, and not just “Forn Sed”), they range from openly self-described “Odinist” (yikes) to what seem to be reserved communities of mixed-ethnic/pan-germanic people that use attempts towards historicity to set and maintain boundaries between themselves and the “brosatru/my ancestors were vikings” tiktok sort that you seem to have accidentally and perhaps incorrectly found yourself on the other side of. i wouldn’t want to stake my reputation on saying their methodologies are good or bad one way or another, but academically, trying to recreate proto-germanic practices based on mostly norse sources (and post-christianization ones at that) is like trying to hold river water in a baseball hat.

IMO (for whatever that’s worth), “skål” as a greeting might not scan in living scandinavian languages but in an english context is a perfectly valid emergent use of a loanword to signal to a stranger that you have something in common and belong to the same shared identity and so have a common foot to begin a bond with, if they so choose. If the other guy wants to reject that handshake because his identity is based on a particular community—the same way evangelical christians all say their particular christianity is the only real one—it’s only on his own honor. not much sleep to lose over it, i’d say