I hate to say it, but depending on manufacturers for this kind of stuff will always inevitably lead to these kinds of situations. This is why I always buy OpenWrt compatible routers and DIY my own NAS.
Over the years, I’ve experienced:
- Netgear refusing to patch bugs like their IPv6 firewall essentially letting all traffic through on the R7800
- QNAP shipping NASes with Intel CPUs that had clock drift issues so bad they essentially bricked themselves. They then refused to provide any kind of support for them.
After that I basically said, fuck it, I’ll DIY my own and have been much happier ever since. If you have the know-how and the time, DIY is the way to go for longevity.
I would not recommend going to the open ones just yet. There are major performance issues with the GSP firmware. You can disable it on the proprietary modules but you can not do so on the open modules since they rely on it for functionality.