A lot of high tech development comes with a greed motive, e.g. IPO, or getting bought out by a large company seeking to enter the space, e.g. Google buying Android, or Facebook buying Instagram and Oculus.
And conversely, a lot of open source software are copies of commercially successful products, albeit they only become widely adopted after the originals have entered the enshittified phase of their life.
Is there a Lemmy without Reddit? Is there a Mastodon without Twitter? Is there LibreOffice without Microsoft Office and decades of commercial word processors and spreadsheets before that? Or OpenOffice becoming enshittified for that matter? Is there qBittorrent without uTorrent enshittified? Is there postgreSQL without IBM’s DB2?
The exception that I can see is social media and networked services that require active network and server resources, like Facebook YouTube, or even Dropbox and Evernote.
Okay, The WELL is still around and is arguably the granddaddy of all online services, and has avoided enshittification, but it isn’t really open source.