It's sorrowful some people choose to hate, complain, ridicule, and block everything that does not fit their choice...

With just a single idea shared, a lone message posted in a community, with your finite priceless time and experience invested, you may get banned instantly, and permanently, instead of actually learning and discover together...

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The single message that resulted in my immediate permanent ban:

::: spoiler Message It's not Linux, but your distribution, or you, what makes it "unsafe".
There are numerous options to harden your Linux environment, and it's relatively trivial to keep it safer if you ever want it, or actually stop blaming and complaining.

For example, to limit the access for root or custom group hwaccess, without much fuss but to give you an idea, for the most popular distros as Debian-based:

1. Add a Udev rule:

# /etc/udev/rules.d/90-hwaccess.rules

KERNEL=="mem",        GROUP="hwaccess", MODE="0660"
SUBSYSTEM=="spidev",  GROUP="hwaccess", MODE="0660"
SUBSYSTEM=="i2c-dev", GROUP="hwaccess", MODE="0660"

1. Set at boot:

setfacl -Rm 'g:hwaccess:rwX' -- \
    /sys/kernel/debug/ec \
    /sys/bus/pci/devices/*/config;

You may then setup SELinux, AppArmor, and secure it via SecureBoot's shim, too.
Yet, you chose to effortlessly complain instead... :::