Apologies if this is a bit too much information!
I realised recently that my shorts have a netting like swimming shorts do and decided to ditch the boxers and see how it was. What an absolute game changer! I don’t know why I didn’t do this a year ago when I started running.
I only buy unlined shorts, and wear my own boxer briefs. The shorts last way longer than the liner does, in my experience, so it’s easier to just separate the two functions into two separate items. It’s the Unix philosophy.