Our Bub is loving having his hands free and not being swaddled at all. If he is swaddled he is finding it really hard to sleep. Is there any concerns with not swaddling a new born at bed time? He is currently only 4 days old! Thank you!

Some babies do not respond well to swaddling - many like to touch their face &/or suck on fingers.
These babies usually respond well to not being wrapped.
While there is no recommendation to swaddle or not to swaddle, there is no known risk to baby of not swaddling.
Ensure you continue to following Safe Sleep recommendations.
https://rednose.org.au/article/what-do-the-safe-sleep-recommendations-mean