Grandma is understimulated in assisted living, and while Mom is looking into ways to either bunk with her, or drag her back to our place, I'm exploring other options. Her apartment does have wireless internet, so we could set up some sort of telepresence or video calling device, but even something as simple as a Relay or a KC2 isn't great, because it loses power, and needs to be explained to her.

I'm thinking that we might have better luck with a Tablet or a PC solution, and I do have a Kindle Fire (5th Gen?) and an off brand Windows 10 tablet around, and I am open to a Pi Project or speciality devices, but it has to be simple enough to plug and play, and the dream would be if it could start a video chat without the receiver having to pick up, or at least as simple as a nurse being able to come in and start a call. Any suggestions?

I'm using OBS Studio to create some video tutorials. Nothing complicated, just me talking and demonstrating the steps on my screen.

I essentially just need to slice up these recordings into clips, delete portions of the recordings where I mess up or there are long pauses, and export it all as one video.

I've used Premier in the past but I no longer have it. While I am pretty capable of learning how to use software, I would prefer something that doesn't have a huge learning curve.

I need something that runs on either Windows or Linux and is free. Not "free trial" free, but actually free. Open source would be a plus but not a requirement.

Feel free to recommend your favorite free video editor even if it doesn't meet all of my requirements, as maybe it will help someone else in the future.