Windows 10 LTSC gets updates until mid 2028 and if you use the IoT version 2032, both of which are full versions of Windows. And by all updates I mean security too. For free.
As for sailing the high seas, if you have the installers now for the software you are using, now would be a great time to see if they are available and back that stuff up or break down and purchase it. It is up to you.
Windows 10 LTSC gets updates until mid 2028 and if you use the IoT version 2032, both of which are full versions of Windows. And by all updates I mean security too. For free.
As for sailing the high seas, if you have the installers now for the software you are using, now would be a great time to see if they are available and back that stuff up or break down and purchase it. It is up to you.