The kernel and its modules are not (versioned) dependencies of other packages, so breaking is very unlikely if you keep them ignored, because there are layers of abstraction between them and applications. Non rolling-release distros do that. Our web and MX servers, running Artix of course, are at over 5 months uptime and going.
Now, unless you've got very new hardware (like the latest Ryzen2) which receives constant kernel updates and you might really benefit in performance and stability, you don't need every single update that gets pushed in the repos. My old Core2 laptop ran on tailored linux-pf-3.14.something and nvidia for many months and countless hibernate/resume cycles, all the rest being updated daily. Same goes for my current laptop, 90 cycles, 42 days of uptime and going strong:
# zgrep Freezing /var/log/everything.* |wc -l
90
# uptime
11:07:11 up 42 days, 15:36, 2 users, load average: 0.31, 0.28, 0.33
# uname -a
Linux hyperion 4.20.14-1-ck-haswell #1 SMP PREEMPT Tue Mar 5 16:47:13 EST 2019 x86_64 GNU/Linux