Used it instead on Davinci Resolve on a few computer because Davinci Resolve require GPU and doesn't always recognize it - so it doesn't even start. Kdenlive doesn't have this issue.
I've made a couple photo/music montages with both tools. Not an advanced user, but I found Kdenlive was more stable on Ubuntu and the UX is similar between the two.
It runs on Linux.
Davinci Resolve also runs natively on Linux (with some codec licensing restrictions)