I got a Macom, an asda sports bra and an M&S post surgery bra! The m&s was comfiest for first few days as I got a 36 back in that one and it was not tight but the Macom has been the best since! I usually wear the asda during day for work and change to Macom when I get home and sleep.
And no they don’t have to be front fastening it’s just easier at fIrst!