What you need is a low powered device and a separate access point. This will pit you way over 150 euro, but its good for a very long time.
Search for qotom box from China. They will have 4 Ethernet ports , fanless. Install opnsense. Plug in whatever AP you can find for cheap into one of the Ethernet ports. You will also need a switch depending on how many computers in your house need connecting.
opnsense is very powerful. You will never go back to consumer grade again. :-) I am blocking all kinds of stuff from social media to big corporations, I can easily see what's going on, adblock, block every singlevdns server including doh and dot ones (using block lists) and force users to use dnscrypt. Zero issues in years except for a nearby lightning strike this year. Good luck.