It's a lot more important if the mask you are wearing fit and have tight enough seal on your face, else you completely voided the purpose of even wearing a face mask in the first place since it's meant to act as a protective barrier to others and yourself.

These days, I usually go with double masking with 3-ply or one single 4-ply. No point having the most expansive premium quality mask but it doesn't fit you or if you not wearing it properly.