Just a couple weeks ago, we moved the bird feeder from the back to the front of the house, just to get the squirrels away from the garden plants. Nothing else can stop them, despite having an enthusiastic squirrel chaser of a dog. (Dog doesn't go in the un-fenced front.) And, the bird feeder is quite squirrel-proof, but they just gather under it waiting for the birds to drop seeds down.
And, a couple months ago, I replaced $100 worth of high pressure fuel line on the F-150 because they chewed a hole in it. (Long story. Difficult repair)
eta: The feeder we've used for about 10 years; for those that are interested.
https://bromebirdcare.com/squirrelbuster-mini/