Russian handles

[twilit solstice]

My Xbox gamertag is in Russian for most X/S games, I see people in chivalry 2 with Chinese characters. Some what looked like Coeptic Greek to stylize a name

But my name shows up as a random 3 digit number every game, such as 334, 507 and so on

My name on the game scoreboard is the 5th down, currently listed as 264

I've attached a picture of my Xbox gamertag

[torpid arrow]

I've seen plenty of players with Cyrillic letters in their names before. But I've also seen people with these 3 digit numbers. Might be platform related?