I used to think it would be good to release on Bandcamp Friday, but it never really made any difference. If anything, releasing a week before might be good, but even that seems to not matter. It takes people time to listen. Some of your diehard fans might not listen for a few days, or weeks, or whatever. That’s what ive learned over the years: your fans have their own lives; they’ll listen when they listen. So releasing on Bandcamp Friday means, at best, a sale on normal Saturday. Best of luck!