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* You can use chromium flatpak version from Flathub
* You can add the Linux Mint repos, and install the chromium package from there (untested)
* You can install the chromium snap (not recommended due to slow launch times)
Tho the .deb binary is not up to date yet https://ungoogled-software.github.io/ungoogled-chromium-bina...
I used debian on desktops and laptops spanning several decades and IMO a typical desktop user probably doesn't want to stay on stable, that's been my experience anyway. Machines I don't use interactively I've kept on stable though.
The current release is Beowulf, corresponding to buster.
At this link: https://hn.algolia.com/?q=systemd
you will find stories involving systemd here on HN over the past several years. I and many others oppose various aspects of systemd, but more importantly, we oppose its being a nearly-inescapable default on Debian. It's not like you can just remove it if you want something else.
It was written by a cowboy coder and issues have cropped up that indicate no serious code review has been performed.
Historical context: It wasn’t always like this; Debian 3.1 was a major release after Debian 3.0, and Debian 6.0 had minor releases up to 6.0.10. This did not change until Debian 7 (which was called 7, not 7.0, and had a minor release numbered 7.1). Therefore, many people might still assume that an increase of the first minor version number is a major release, even though it is not true anymore.