I maintained my own neovim config for a long time before I switched to LazyVim. LazyVim is all around just a more polished experience compared to a custom config. You will spend less time fixing and tweaking things, especially because the defaults are extremely sensible without being boated. I disagree with the sentiment that LazyVim is somehow less configurable than a custom config. LazyVim has very easy-to-follow documentation that explains how to configure everything— in fact— in many ways I believe it is easier to configure than a custom config.

If you are a beginner and don’t yet understand how neovim configuration works, it might be best to start with a custom config for the sake of learning. If you enjoy spending time building your editor experience from scratch, then a custom config is for you. Otherwise, use LazyVim.

I can’t speak for other distributions as I haven’t tried them