I like my current bought-and-owned-by-me version of Lightroom as my main image editing application. It's fast and easy for me to use. After 20 years or so, I let Photoshop lapse, and last summer I cancelled the monthly rental fee for the right to use Lightroom CC and Photoshop CC, and just have my older bought-and-owned-by-me version of both Lightroom and of Photoshop on my big Mac, when I need Photoshop, I have an older bought-and-owned copy available (which I have only very,very,very very seldom used the past few years). As I've gotten more adept with Lightroom's tools, I've found it to be better, and faster, and easier to use than Photoshop. I do not want to generate a ton of large "work files" that are 128 or 136 megabytes, when I can work on filkes and have Lightroom make small,compact lists of the changes I've made, averaging under 32k per file. When I am satisfied, I export a .JPG file of whatever I need. My RAW files are left un-touched.
I'm not really all that into image manipulation; for me, fairly simple exposure adjustments, rotating a degree or two, cropping, and applying lens correction profiles, maybe a bit of chromatic aberration removal or fill light or highliught recovery, if needed, curves adjustment, some burning in, a bit of dodging, tooth whitening, iris improvement, things like those, all of those operations (and more, if needed!) are handled quickly and easily by Lightroom. My personal preference toward using Lightroom over PS is more a matter of the tool set and the workflow for me, as opposed to the clunky,old-school way Photoshop works.
For those with older copies of Photoshop or Lightroom, there's the option of using Adobe's free DNG Converter software, and using that to convert camera-maker RAW files to .DNG files, and then using PS or Lightroom to open the .DNG files; I myself have resorted to this method three times over the years, when my Photoshop was incompatible with brand-new cameras, or when my brand new cameras wwere incompatible with the old softweare I happened to be using at the time; most recently THIS veryweek,in fact, I needed to download a new Adobe DNG Converter app for my Nikon D610's .NEF files, which my older version of Lightroom could not read.
Anyway...OP--welcome to TPF!