Luke the Lucky replied to If I opt in beta branch, can I carry that over to public release? November 23, 2022 @ 1:08:09 pm PST
The mods on the reddit for Valheim stated it will carry over to live.
Q: Will my progress carry over from Public Test to Live version?
A: Yes
Q: Will my progress carry over from Public Test to Live version?
A: Yes
9:13 pm, November 23, 2022