Depends on your operating system. Every competent piece of software written since the year 2000 can deal with spaces just fine. That includes browsers, which will translate spaces into %20.
For old Windows programs you’ll need to take special care not to make the file name too long. For Windows you also need to watch out for some special characters like :?* which are banned from usage with the Windows filesystem API. Windows has some other weird rules too (like with files starting/ending with ., file names consisting only of spaces) but you probably don’t need to worry about those.
Depends on your operating system. Every competent piece of software written since the year 2000 can deal with spaces just fine. That includes browsers, which will translate spaces into %20.
For old Windows programs you’ll need to take special care not to make the file name too long. For Windows you also need to watch out for some special characters like :?* which are banned from usage with the Windows filesystem API. Windows has some other weird rules too (like with files starting/ending with ., file names consisting only of spaces) but you probably don’t need to worry about those.