hey everyone, im going to invest into getting a mtb as im wanting to get into this side of cycling, there are 2 bikes im looking at getting, one is a hardtail and the other full sus

this is the hardtail - https://www.merida-bikes.com/en-au/bike/4729/bignine-tr-5000

this is the full sus - https://www.merida-bikes.com/en-au/bike/5756/one-forty-700

reason for these bikes specifically is i work at a bike shop and these two bikes are affordable for me, both around the same price

what is everyones opinion on what i should get as a beginner and why?

thanks in advance!