well it seems the “legacy verified” and “twitter blue verified” values remain intact on their servers
Here showing my custom tweet embed implementation, which treats “legacy verified” and “Twitter Blue verified” as their own statuses and displays them separately nitter.moomoo.me/i/web/status/164… (https://nitter.moomoo.me/i/web/status/1642774145871286273)

https://nitter.moomoo.me/wongmjane/status/1642774145871286273#m