Netflix is actually the lowest bitrate offering.
Netflix: 15-18 Mbps
Disney+: 25-30 Mbps
Amazon Prime Video: 15-18 Mbps
Apple TV+: 25-40 Mbps
HBO Max: 15-20 Mbps
This is from an LLM but it tallies with what I remember reading. Apple TV is by far the best, followed by Disney+.
Netflix unfortunately seem to use any improvement in compression encoding efficiency to reduce bitrates, rather than improve PQ at the same bitrate. It's definitely got worse over time. I also remember reading that for content they deem more compressible they use a lower bitrate.
I can sort of get that on the lower plans, but its frustrating they won't improve PQ (or at least keep it the same) for the (expensive) 4K plan.