I haven't done native development professionally, but it seems to me like dynamic linking is a leftover from a time when memory and even disk space were preciou

I haven't done native development professionally, but it seems to me like dynamic linking is a leftover from a time when memory and even disk space were precious, isn't it? Are the savings really still worth all the breakage? What is Docker but a way to force static linking on programs that were built for dynamic linking?