At home, I built an OPNsense box to evaluate (using Sophos XG135 Rev 3 hardware, along with an OpenWrt nice Netgear WiFi AP on POE), but then went back to a plastic OpenWrt all-in-one box.

OPNsense (and pfSense) are neat, but I personally don't need an IDS/IPS right now, and I like to be able to run the router fanless.

One thing that OpenWrt could use immediately, for basic home WiFi router functionality, is easier ways to add guest-like VLANs from the Luci Web-based admin UI. (I currently have a guest VLAN config that I partly cargo-culted with numerous steps in Luci years ago, largely based on a blog post, and that would be a pain to reconstruct on a new install.)

For techies whose households include non-techies, a little IDS/IPS could help keep some nasty traffic off your home Internet pipe, and I suppose that could now run alongside OpenWrt on some of the more powerful plastic boxes, or on a PC with the right WiFi devices/APs. (In addition to use of VLANs and routing to minimize damage from all the malware-infested devices, and also thinking "zero trust" for the techie stuff you run.)

>I like to be able to run the router fanless.

You don't need a fan for OPNsense or pfSense? Plenty of folks running protectli boxes without a fan, they're one of the most popular platforms for both OS'

> a little IDS/IPS could help keep some nasty traffic off your home Internet pipe

the adblock package does a great job of blocking ads and other nasty stuff, it doesn't have fancy statistics or an interface like Pi-hole but it does its job without complaining