Matching components?

I’ve read a couple of posts on this site alluding to the notion that one can be best assured of positive results by matching components produced by the same manufacturer when assembling a stereo system. Is this really a thing? Should I worry that a Decware phono stage won’t play nice with my ARC linestage? Or that I would have been better served by finding an ARC DAC in lieu of the Black Ice FX DSD I recently acquired?

Just looking for a little guidance, as my budget is such that I really can’t be screwing this up...

thx