Should I invest in my individual account instead of my Roth?

Looking to buy a house in the next 2-4 years. Which could turn out to be a funny joke IK. With all the buying opportunities wouldn’t it be wiser if I’m going to be dumping thousands in the market rn to do that in my individual so it’s not all locked up? This way I can still benefit off this bear market in years to come, but be able to pull out when needed. Im still investing in my Roth. But not at an increased rate.