This is an old question, but it became relevant to me recently. I started working remotely and tried several remote access options. I ended up using https://www.helpwire.app/ The connection is stable and doesn’t drop during work. I also like that it’s easy to use, works across different operating systems, and it’s free with no time limits. Hopefully my tip helps someone!
Unfortunately, I didn’t save the link. I just searched on google: Watercolor effect in DaVinci Resolve Youtube, and you’ll find plenty of videos there.