Biggoron Sword is in the game via amiibo.
Master Sword has a base attack of 30, when surrounded by calamity you get 60 attack. Even if it had 60 base attack its still terrible and not worth it. I can easily get myself an arsenal of Lynel weapons ranging from 80-100 attack (yes I own a 100 attack single hand sword). That's just the lynel class, there is also the Royal Guard and elemental weapons which not only do additional damage based on enemy type and terrain but is resourceful for shrine puzzles.
However if we step away from melee weapons there are bows that can far outdamage what you can do with any sword in the right situation like my lynel bow 30x5 (that's 150 attack from a single shot) and that's just from regular arrows.
I hope this is more than enough to show you how pointless the Master Sword is. If I could put it in my house as a show piece I would just to save the space in my inventory for better stuff.