It used to be OK. They’ve changed font rendering around the time Mojave was introduced (or was it Catalina). HiDPI is also gaining popularity in Windows word, but it was Apple who popularised it, after giving it fancy name (Retina display). Windows is more compatible with old displays (it has to be, because of huge user base in comparison to Mac), whereas Apple thinks the future is with Retina. They sort of neglected how MacOS looks like on non-retina displays, I mean it does work, but it looks like crap.
Now, as I said before, Apple doesn’t have a single product without Retina display. iPhone, iPad, iMac, MacBooks, and external displays Apple sells are all Retina and they will not go back on this.
Don’t worry about scaling, with M1 this is non issue. Just buy any 4K, 5K or 5K2K display (preferably from a place with good return policy), choose one of HiDPI modes and see for yourself how beautiful and amazingly sharp everything looks like. 144 Hz is for gaming anyway and who games on a Mac?