Absolutely not. Mastering is a magnificent dark art, not a means to an end. Engineers like @hilljam put DECADES of work into ear training so they can fine tune a mix into not just something crisp and professional, but also something that is INTERESTING, that preserves the personality of the song & its artist.
Full disclosure, as someone who is and has often been dirt broke throughout my career, I know how tempting it is to take shortcuts. Hell, I used Landr myself when I didn’t know better. All I cared about was loudness, and Landr did that for me.
But it’s not hard to learn how to slap a limiter on your master bus and get that release-ready volume boost!
