Most isp supplied routers aren't that great.
But we can't tell you to upgrade or not. A lot depends on what you're doing, what you're trying to achieve, your home, and even what devices you're on.
There is some benefits to having an AX router without any AX devices but it might not be a whole lot if you're not doing a decent amount of streaming/data usage.
As well as the size of your home makes a difference. Mesh systems are great but not if your home isn't that big. Reason why is they need 30ft seperation to function properly. If the home isn't big enough, it's better to invest the extra $ in a single router solution.
And sevice matters. Whats the point of buying a system capable of AX speeds when you only have 50mbps service and a wireless AC system is fully capable of maxing it out.
So can we say "sure, invest hundreds of $ on a mesh AX system". but without knowing more, its unknown if you actually need a AX mesh system.
