Improve the quality of Netgear support

Incredibly disappointed with Netgear. I bought a 5G WiFi 6 Mobile Router (MR5200) for streaming on twitch
1) No response from support on any social media
2) Device registration error (I can't register my router and get premium 90 days support)
3) My Nighthawk MR5200 goes into reboot if the screen is on for more than 20 seconds
4) There are no firmware files on the site for self-updating or downgrading in case of problems
5) They do not listen to the requests of users (people have been asking for the auto-messages feature for many years. Many providers require sending sms after the daily traffic limit, on android I had an auto sms program, and now I have to send them manually).
6) The device catches the signal like a regular smartphone, and with an external antenna it catches even worse.
7) Rare software and firmware updates despite a lot of problems (firmware Build date 2021/08/19 NTGX55_12.04.12.00)

And all this at a price of 800 euros for a mobile router.
I plan to return the device to the store, demanding a full refund. I will warn my audience against any interaction with this company.