Free plan has 1 Gib/month egress => 1 Gib / 8 = 125 MB / 30 days = 15,6 MB / 86400 seconds = 0,0001808 MB/s
Basic plan has 40 Gib/month egress = 0,0001808 * 40 = 0,00723 MB/s
Professional plan has 100 Gib/month = 0,0001808 * 100 = 0,0018 MB/s
That's not much if you need to server some actual content. This is really just to run cheap workers that don't require much cpu/ram and networking. And even then it might be cheaper to just get a vps.