I watched your first video. As someone who likes the idea of Vim and has learned many of the keyboard shortcuts, my impression of the video was "Debugging in Neovim is quite simple. Just remember these 35 keyboard shortcuts."
That's true, it requires a bit of memorization and configuration. I've put the shortcuts similar to character movements: CMD + j,k,l (jump over, jump out, jump in).
I've mentioned this to several others (and also as a response to David in the past) but I highly, HIGHLY recommend anyone who's just getting started with nvim-dap, watch these videos. They helped me immensely when I was first getting it set up.
Thank you David, they're a fantastic overview of these plugins!
I knew I'd watched the first two videos at some point because when I opened this page, those first two links were the only ones greyed out. Good stuff.
https://youtu.be/ga3Cas7vNCk
https://youtu.be/SIYt1dopfTc
If you prefer Vimspector:
https://youtu.be/-AZUIL1rY3U