If you like outdoor clothing i can recommend Fjallraven, however i am not sure what sort of shorts you are looking for

Engelbert Strauss has great pants, they are specialised for work clothes but they have a lot of options.

Also Varusteleka has some nice shorts. Pockets in the right places, comfy.

Love the Shorts and pants by Reell

I‘m a cargo pants and shorts guy and can attest them a lifetime of many years. Wearing mine for at least five years now.

You’d probably have to look at workwear to find something comparable to dickies, as dickies used to be workwear. But I feel you, I love my dickies shorts too and hope they last forever as I’m not going to buy new ones.

The athletic/weightlifting style shorts from decathlon are peak. Lightweight and stretchy where you need it.

I've had dickies but after decathlon I can't go back. Sure maybe they won't last 15 years but 3 seems reasonable for a nearly every day wear for me. And they're still going.

I have been quite happy with the majority of Asket's clothes. I originally found them when looking for more environmentally friendly options.

You didn't say cheap just high quality, so merz b schwanen and sunspel are both made in Europe and both very high quality.

Tom Tailor! Might not be the cheapest but daaamn they are comfortable and durable!

I bought linen shorts recently from la Gentle Factory

They are all made in France, even the fabric is made in France in most cases.

Lol, was totally thinking shorting stocks for some reason. But you mean shorts as in pantaloons.

I have no recommendations as I'm across the pond