Some details,
Bathy.
Current version Belarusian flag includes anthem, and it's good. Thank you.

It's a legacy from the USSR - the same flag & anthem (w/some minor corrections ) used in BSSR.
If it's possible, I would request a historically correct Belarusian flag with the "Pagonya" ("Пагоня") anthem - additionally. Here's an example -
A horseman running to the west means a (successful, BTW) resistance to German knights. Historically correct, but "rejected" in 1995 by voting (and it's easy to understand - the most of voters were citizens of ex-USSR, so nothing surprising) to be "closer to the RF" (govt explanation).
Anyway, thank you for your work!