Yes, it is maybe monolithic (but so is the Linux kernel). Its philosophy may differ from unix's "get one thing done well" too but integration of various functionalities comes with its benefits.
Some people say it is bloated. The substitutes to systemd are lightweight but less featureful. Maybe some of them will get bloated as they achieve feature parity.
People have a right to build substitutes and replacements -- I believe in the "Let a hundred flowers bloom" philosopy. However I can't understand why systemd is the point of so much disagreement.
https://michael.stapelberg.ch/posts/2024-01-17-systemd-indef...
https://fussmattenprofi.com/en/these-cars-fail-the-tuev-repo...
Edit: Previously stated "at 12-13 years it was a little over 40%.", but this is incompatible with how long the Model 3 has been on the market, so assume this was a caption mistake by the site posting the stats.
btrfs and the new bcachefs can do RAID with mixed drives, but I can’t trust either of them with my data yet.