I will say, this is rare. But the good thing is, it cost you no $$ to test. And its not a bad thing knowing the status of your router’s limit.
I was using eero 6e and like it very much. But a weakness was, when I exceeded the 75 node, it would not let me move or reassign them to my other node. I moved to ASUS Zen ET8 2pak. This one support 200 devices. I have 130 IoT devices in my small home. Everything smart even though I am not.
@habib has a very good idea adding the smart wifi plugs. I even have them on Echo Dots. I had Wyze smart plugs on my Wyze V3’s, but Wyze didn’t have the features some of my others wifi smart plugs did, so removed them.
I am using Sonoff S31 wifi smart plugs. I have my Dots, my V3’s and my rounter on S31’s. They store the off/on schedule locally so they don’t need an Internet connection to recycle power to the device. (Love that.) I have cameras and Dot’s restarting with a scheduled off, wait 1, and on at 03:00 - 03:30, daily. I have the router off/on twice a week. The S31 also has a "Power Last State, so they will turn themselves on or off when they lose power, depending on what you wanted.
Here’s a trick. Want to restart a smart plug? Go into settings, select a time 5+ minutes in the future, and give it a schedule “off” then two or three minutes later, another scheduled “on”. This way you don’t technically need a “restart” button, as they often don’t complete. You can test this anytime to insure it works, so you are not left hanging when you really need it to work.
Check the setting/properties of your smart wifi plugs, do they have these features? You don’t need to replace everything, if not. Just those places where you need the capability.
I’m in the process of moving to Starlink for Internet. My house is on smart batteries now. So, when the grid goes down, I have power. When power goes out, we lose cable/Internet. Soon, not me. Starlink will be powered by the house. And the Starlink router can convert to a mesh system by binding another Starlink router to the first. And the Starlink router has not device limit/ceiling.