Yes and no. First of all, what you need to realize is that GNU/Linux is a UNIX system, and UNIX is a standardized operating system design, with standardized commands. However, There are some deviations depending on the UNIX system — e.g. GNU/Linux versus FreeBSD versus macOS versus NetBSD, versus OpenBSD, versus Solaris, et al — as well as between the various GNU/Linux distributions.
When it comes to commands, there are two kinds, just as in MS-DOS, OS/2 and Windows, i.e. there are commands that are provided as standalone executables, and there are commands that are internal to the shell.
In Manjaro concretely, the default command interpreter is now zsh for terminal sessions within a graphical environment such as Plasma, GNOME, XFCE, et al, and bash for everything else. And while zsh and bash share a common set of internal commands, they do differ on account of a number of other commands, as well as in terms of the command syntax. And there are yet other shells than just those two, all of which also have their own internal commands and syntax — e.g. tcsh, pdksh, et al.
Now, most modern UNIX systems strive for compatibility with the POSIX standard, and as such, most shells will have a (strictly) POSIX-compatible mode and honor POSIX commands. zsh is not POSIX-compatible, but it does offer compatibility with the original Bourne Shell, which has also long been a standard, and whose commands almost all of the shells mentioned above — except for tcsh — are for most part compatible with.
If you are new to GNU/Linux, and especially if you come from the Microsoft world, then it is however most important that you familiarize yourself with the principles and design of UNIX, because compared to Microsoft Windows, UNIX is a very different beast.
Not so as to toot my own horn, but I’ve written a long and very detailed post about UNIX/POSIX permissions and file ownership, which also covers some of the other aspects of UNIX in comparison to Windows, and another post which covers the differences between them on account of how either operating system deals with storage and filesystems. I will include the links below. 