I’d say its closest “competitors” are really Resolve and iMovie (much more robust than iMovie but same market more or less) since anyone who’s doing this professionally is going to pay for Avid/Premiere/Resolve Studio/maybe FCPX and not use kdenlive. Resolve is more geared towards casual use and hobbyists, while still being powerful in its own right (and free, of course).
Premiere is a (finicky) subscription based professional tool. kdenlive will never be a replacement for that and doesn’t strike me as an attempt at one.
Things like that: https://www.lucasfilm.com/news/lucasfilm-originals-the-editd...
I think Media Composer always had a lead in feature film / TV. It's possible Premiere Pro had a lead in other markets.
Resolve has an amazing free-as-in-beer version and the fully paid for one is currently £225 - and that's it, you've bought it, no subscription. Adobe biffed that one.
For VFX you've got a separate app, Adobe After Effects, which was absolutely amazing, but Resolve uses a node-based VFX chain rather than AE's Photoshop-like layers. Now okay, if you're used to AE and layers then nodes are a steepish learning curve - but if you're already using Blender or Unreal Engine (and lots of VFX folk are) then it's a nice simple jump.
Resolve's training material is way better than Premiere's, too.
The cost of an Adobe subscription just makes no sense to me anymore unless you’re a photographer or graphic designer primarily as BMD hasn’t replaced that pipeline (yet). For video and vfx work fusion is great. Anything more advanced in the animation/effects world and you’re leaving NLE’s entirely anyway.
Also let’s talk about Adobe cloud manager…
Edit: it would be ~$60/mo for the above in creative cloud. $720 a year.