I’d say if you plan on using it any public places, or if you don’t have full control over all the computers/technology in your home network, it’s a good idea to run one. It’s a nice last resort should someone on the same lan have a piece of malicious software.
For SF, I recommend Primer. Its definitely a challenging movie as there’s no clear exposition, but I found myself wanting to watch it several times to piece it altogether.
I’m a fan of the “just dive in” approach. You may encounter issues, but researching the solutions is where you really begin to learn. I personally like Fedora, but any of the other distros mentioned are also great choices. The great thing, if you don’t like it there’s tons off other options to try.
Bit of a side note; when I’ve had users with low storage and too many apps, I’ve had some success moving them to PWA’s. Social media apps in particular seem to be storage hogs.
Just adding that the base level is free up to 5 users is you want to sample it a bit before paying for more features.
It can definitely feel overwhelming, so start simple. Install a basic well known distro; I’m partial to Fedora, but Ubuntu is also a great choice. You’ll learn a ton just by using it day in and out for typical tasks. If you need help reach out to the community. If anyone comes off as rude I recommend just ignoring and blocking them. Using it will eventually come to feel second nature like MacOS or Windows. Enjoy!
For comparison purposes nextcloud.com offers a solution as well.
I find roku to have the simplest interface for people to learn. Fill it with free channels like tubi and pluto. For your personal library I’d suggest jellyfin. Simple and free.
I want to second this. Paid is only $2 a month or $20 a year. Excellent for blocking various trackers on all devices even those not on your home network.