Have you ever noticed when importing images into Lightroom Classic and "Copy as DNG" is listed as an option? It's possible you completely skipped this as A/ You had no idea what it meant or B/ you just totally missed it. So, should you convert Raw files to DNG?, I believe yes and you might consider doing so, after reading this post.
Julie Powell is a photographer, writer and educator, offers unique photographic opportunities and inspirational ideas to help YOU become the photographer you wish to be.