Have you ever considered upgrading your refrigerator? Washing machine? Kettle? A router is a transparent appliance to most people.
It's sorta like checking if spare parts are available for your refrigerator or washing machine.
You need to know why you want to spend money, which implies evaluating features, needs and possibilities, virtually guaranteeing that the user learns that OS or firmware updates and OpenWRT exist and are important.
Luckily, many (but certainly not all) continental West-European ISPs allow you to lease a Fritz!Box or you can buy one in a store and hook it up [1]. Perfect router/modem for consumers (not too complicated), can be configured through a web interface, and the hardware and software is developed by a German company.
[1] Many European countries have router/modem freedom, so an ISP cannot block you if you want to hook up your own gear. E.g. quite some tech people here use their own XGS-PON fiber ONT or at least their own router + modem.
I was reluctant to recommend them by name because I know there are other good ISPs, some are cheaper, some are more expensive, some operate only in certain areas (if they do not use Openreach local loops).
Jun 08 00:23:10 zalgor kernel: [UFW BLOCK] IN=enp0s31f6 OUT= MAC=01:02:03:04:05:06:07:08:09:10:11:12:13:14 SRC=192.168.178.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0x00 TTL=1 ID=53621 DF PROTO=2 ... from my German residence right now.
Just the last one, out of gazillions. It's a proprietary protocol for finding their other proprietary stuff in the LAN for home automation, meshing (also proprietary).
It's also almost useless for more complex internal setups.
Rather logspammy if you ask me.
One doesn't have that with other, more technical options. There is also less and less need for the "DSL- (or cable-) modem part, since fibre tends to be plain old ethernet.
Also the ownership of AVM recently changed. I fully excpect ensuing enshittification.
Instead I went with a Gl.inet device with three interfaces.
I've considered it, if I can get fiber here I will definitely get one for my segment, and maybe my resell segment too.
And besides this issue, overall it works great. I recommend this to anyone who asks me about it.