I'm sensitive to noise, and usually book late enough that the only seats available are in back. And fly at least once a month.
Absolutely decent noise cancelling headphones are available for under $70 US last time I bought some. Mine were called Q30 or something, and they were better than my Sennheisers from 2016-ish. Worth every bit. If one can afford a ticket, one can afford this one thing to make it less awful.
I don't like it.