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Ubuntu 22.04, codenamed Jammy Jellyfish, was released on 21 April 2022.
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It was followed by Ubuntu 22.10 Kinetic Kudu on 20 October 2022.
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It was followed by Ubuntu 23.10 Mantic Minotaur on 12 October 2023.
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It was followed by Ubuntu 25.04 Plucky Puffinnwas on 17 April 2025
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It was followed by Ubuntu 25.10 Questing Quokka on 9 October 2025
All Linux distros keep publishing new versions: Fedora, Mint, Debian…
Yet strangely, I don’t notice any change. I’m just a normie user. It seems only computer nerds understand why the new versions are “game changers”
Apart from “increased security”, what is actually the point of these releases?

You mean for the Linux kernel specifically? Linux distributions?
For software in general — not Linux-specific — updates fix bugs (some of which might be security-related). Adds features.
That may be too general to be useful, but the question doesn’t have much by way of specifics.
I feel like maybe more context would make for better answers. Like, if what you’re asking is “I have a limited network connection, and I’d like to reduce or eliminate downloading of updates” or “I have a system that I don’t want to reboot; do I need to apply updates”, that might affect the answer.