New RAX120 Firmware 1.0.1.136 is trash I rolled back

Let's be clear here.  Anyone who has not had issues with the rax120 firmware is simply incredibly lucky.  Factory resets don't do anything when the firmware is so bad that it randomly trashes some people's networks while continuing to work well for others.  Netgear seems to have great new hardware but absolutely no grasp of how to create and improve the firmware that runs it. I have purchased and used Netgear routers for over 20 years and always loved them. Have had the rax120 for 14 months.  Nightmare from day 1. So bad I even paid for the extended warranty and technical support, which doesn't really know how to deal with the rax120 problems, either.  I am on the FOURTH unit in 14 months, because technical support admits that a $500 router should not work so poorly almost every day for me, but can't figure out what to do to improve the performance, so they chalk it up to hardware radio problems.  But I believe the problems are all in the firmware.  And very random because the firmware is just not well made.  I will now have to roll back from 136 as well, because, even with multiple resets, it took my 5G network down from 150 Mbs to 5 Mbs (one room and a total of 60 feet away,  not good performance to begin with, admittedly, but at least usable), and took my 2.4G network down from 100 Mbs to 20 Mbs.  Netgear needs to hire and pay firmware people who know what they are doing.  Once I finally convince myself to abandon a $500 router (this Black Friday, probably), I will likely never buy another Netgear product again.  Just a shame, really.  And shame on Netgear for sticking their collective heads in the sand, as I bet they have never had so many complaints and firmware issues before the rax120.