“Don’t do it the way everyone else does it or the way you’ve always done it; our designer decided to make that hard for <inscrutable reasons not related to delighting existing users> and instead we offer this hard-to-discover non-idiomatic workaround.
“You will grow to love the workaround because it doesn’t hurt nearly as much, kind of like stopping after you’ve been hitting yourself in the head with a hammer.”
I guess you (deliberately) missed the part where the two features coexist perfectly fine. There is no "“Don’t do it the way everyone else does it", you pulled that out of your ass. All the Linux DEs worth mentioning have draggable window borders that are familiar to any Windows or MacOS user. The default width of those borders varies, but thick borders by default are common.
“Don’t do it the way everyone else does it or the way you’ve always done it; our designer decided to make that hard for <inscrutable reasons not related to delighting existing users> and instead we offer this hard-to-discover non-idiomatic workaround.
“You will grow to love the workaround because it doesn’t hurt nearly as much, kind of like stopping after you’ve been hitting yourself in the head with a hammer.”