In immutable distros, you or any other programs that are installed on the system cannot modify the system files. That includes the system configuration files as well as applications. Its goal is to solve the problem of an entity gaining admin privlieges to your system and cause loads of damage. There are some addtional benefits too:
Updates apply at reboot
Root partition is read-only
Considered very secure
Sandboxed applications via flatpaks, snaps and appimages.
I listen to these, have tried a lot of different ones but as pointed out by another comment JupiterBroadcasting keeps the highest standard when it comes to a quality news and entertainment. They're really fun to listen to and cover everything relevant in the Linux world. I marked them as JB.
JupiterBroadcasting Family:
Linux Unplugged, this is the best one imo.
Linux Lads (general Linux)
Linux After Dark (general Linux)
Linux Downtime (general Linux)
Linux Matters (general Linux)
Late Night Linux (general Linux)
2.5 Admins (mostly network and security)
Selfhosted (also Linux, but mostly about self hosting apps and the process of it)
Hybrid Cloud Show (brand new cloud show)
Other ones:
Linux + Open Source News, by TLE
The Homelab Show
The self-host cast
Not strictly Linux, but tech and or security related ones:
I wouldn't see why not? Ur getting 22 books at the price of what one or two of them would have cost normally. Imo it's a bargain and as someone who's starting to work in cloud / open source within the next few months I'm defo happy to see this deal available! Have also had really good experiences with the books published by no starch press 🙌
https://www.myanonamouse.net/ (private tracker but relatively easy to enter as they have open interviews each Saturday and Wednesday if I remember correctly)
They became independent again last year!