Important question about end of Windows 10

Simple words, it won't affect the process. 

One of my devices which I use to upload to Adobe stock has Windows 7 and works properly.

'as long as it's far away of creative cloud'

Windows is maintained by Microsoft and not by Adobe. Adobe has no possibility to influence any Microsoft (or third party) provided tool. The ony issue with the end of support of Windows 10 is that there won't be any update anymore, especially security updates. That puts your data at risk, not Adobe's. I wouldn't use any critical service, like banking, credit card, helth services etc after that date. And I wouldn't use Windows 10 in a business critical operation anymore. But the end of Windows 10 support does not concern any services or programs that Adobe offers, except that they won't support Windows 10 anymore. So if you have an issue with Adobe software or services, support will only be provided when using a supported platform.

The end of support does not mean that the applications running on your system will stop. Even after application updates, which are usually backwards compatible, you should have no problems.

As of now, FileZilla — the client recommended by Adobe — still works even on Windows 7 x86 and Windows 8.1 x86, i.e., systems that lost official support back in 2014.
Meanwhile, Windows 10 has an LTS version supported until 2027. So, following this logic, your question might become relevant and reasonable sometime around 2037 — if by that time this forum, FTP, Adobe, stocks at all, and all of us still exist.

As for October 14, 2025 — there’s a 99% chance that absolutely nothing will change. (Well, unless Adobe’s IT team suddenly decides to fix something on the FTP exactly on that day, and everything will crushes down.)