I’ve used Resolve (on Mac) for projects in the past year or two and didn’t run into many issues. But the last update I used, which was around October 2019, had this issue where it would only export 5-10 seconds of my project before crashing. I basically had to export my whole project that way and then paste it all together in Premiere. It was a nightmare. Hopefully they’ve fixed this issue since then.
Some people have switched to just Resolve, but there’s going to be growing pains if you aren’t used to it. The best thing to do is to watch tutorials in your free time in order to learn the ins-and-outs of the software, and understand what its strengths and weaknesses are.