The executive membership savings is worth it if you like package travel, such as cruises and resort stays in the Caribbean. If you mostly travel domestically in the US, there really is not much advantage to that level.
The best discounts for Gold Level had been for car rentals, but the pandemic rendered those discounts laughable, and they are only just now getting to the point where they are equivalent to corporate rates on rental cars. I do expect that to improve again as time goes on, but I think that rental car rates are going to stay much higher than they typically were pre-COVID.