I have some 10 lb. Sufix 832 spooled on my Daiwa Tierra 1500 and haven't used it at all since November 2019. That's almost 3 years without being wet.

 

Will it still be fine or should I respool?

As long as the braid was on the reel, and wasn't stored where direct sunlight could hit it, should be fine. Braid last's a loooong time. IMHO, your good to go.

Agreed good to go. I have kept braid on a reel for multiple years, embarrassed to say how long on some reels, and only change it once it gets too short from cutting off bad sections due to wear and tear. 

I have 2 rolls of original spiderwire. And a reel with it. Will last a verry long time.