

If you’re just running it in AP mode and extending from your base router you will be better off than if it’s your WAN device. I don’t know enough about these exploits to know how they are executed, so I can’t give you a solid answer, but I think it’s best to err on the side of caution when it comes to your data security.
If you’re fairly tech savvy and willing to put in a little effort, you can flash the firmware on the TP-Link with something open source like openWRT and that would eliminate any exploits directly caused by their coding. I haven’t done this in years, but I’m sure there are plenty of guides to walk you through this. It would require resetting up your network, but you’d need to do that if you replaced anyway.
Personally, I would replace the device with something higher quality. I don’t have recommendations for you, but I’m sure there are some resources you can find with security minded device recommendations. For “pro-sumer” grade stuff, where it’s better than your off the shelf options but not enterprise grade, I’ve heard Unify is a good option, but it’s complicated and expensive.
I recently went through the WAIS IV test through a professional facility. The test was pattern recognition and recollection, mid level mental math problems, memory recall, and a handful of other thought provoking questions. There was nothing in the exam that actually tested any knowledge in specific areas, because IQ isn’t a measurement of a person’s intelligence.
My wife and I are very likely on opposite ends of the IQ spectrum, and that is not a problem. I think the difference in the way we think gives us more well rounded life experiences. My wife is well studied, well organized, and intelligent, but she’s not strong in escape rooms, brain teasers, and trivia. I am far more analytical in how I go about things. I’ve got pretty decent recall and I am pretty good at breaking down problems to the core and breaking out solutions. We just live different personal lives with some things. I play music she walks the the dog. We have plenty of overlap in interests and hobbies that have nothing to do with IQ.
Also, as other have mentioned, if you haven’t paid a professional to administer this test, then ignore anything or anyone telling what your IQ is. Depending on which professional test you take, the scale is different. With WAIS IV, it’s 40-160, but it’s measured against the population. Idk how other do it, but it’s different.
Basically, IQ doesn’t matter. Just live your life.