I have an xbox series and I dont know if it's banned to Speedrun on the series

if you're able to speedrun the game and submit a run then yeah it's fine i'll change Xbox One to just Xbox

If the loads aren't different from an xbox one/s/x then it should be fine also just add for platform options every xbox one and series x and s

i think its alright to have any of the modern xboxes that can run roblox, just make sure that you are able to send the video