Glenn Berry breaks out the stopwatch:
SSMS 18.X cold startup performance is a big issue for me, since I regularly have to start SSMS 18.X on various small VMs running on older, slower server-class processors. BTW, “cold startup” is the first time that a program is loaded into a process since the last reboot of the operating system, so nothing from that program is already loaded in memory.
The hero image alone convinced me to install 19.1.