Is FMS 220.127.116.11 supported on RedHat 7 Linux kernel version 3.10.0 693 x86_64?
Is FMS 18.104.22.168 supported on RedHat7 Linux kernel version 3.10.0 693 x86_64?
Foglight don't have any direct dependency to linux kernel version.
If you consider to upgrade the kernel version, generally it's safe.
For RHEL, there was an issue in the past with other kernel version: https://access.redhat.com/solutions/3091371.
The solution was to use larger stack size(e.g. use -Xss2m or -Xss3m , depending on JVM memory size.). The issue happened on kernel version 3.10.0-514.21.2.el7.x86_64.
If an issue is encountered in the upgrade of RedHat kernel, follow the workaround of KB230903.