I would say that counterintuitively, it’s a factor in the Mac’s strong indieware/botique software scene, which has been going for decades now. Most devs in that camp keep up with the platform changes and those who don’t get swept away, opening up space for someone else to fill that niche.
Can you elaborate further on what software project/products/companies you are referring to?
A couple of long-standing small Mac-focused companies that come to mind are Panic and The Omni Group, which have been building high quality software since the days of classic Mac OS and NeXTSTEP, respectively and are among the fastest to adopt new things coming out of Apple.