Understanding “Ignored Groups” and how to best apply

I am unclear on what “Ignored Groups” is as there isn’t 1:1 parity between the references I’ve seen and db tables. If they are a more abstract ‘cache groups’, how do you discover what cache groups are set, in order to ignore them?

Further to this…

I am using a plugin in a multisite environment. This installs tables prefixed with the blog ID. I want to exclude any version of that table/queries to that table ever being stored in Redis, because it’s infrequent access with a lot of rows. I believe that storing the data from these tables is causing my redis to go into swap.

So knowing that there is a table called wp_111_wp2static_log, should I add define( 'WP_REDIS_IGNORED_GROUPS', 'wp2static_log' ); to wp-config.php?

Even if this is the case, I feel like I should be adding wp2static_log via a php function, because in my diagnostics, I already have more than the default set, and I wouldn’t want to lose this config:

Ignored Groups: [
    "counts",
    "plugins",
    "themes",
    "wordfence",
    "wordfence-ls"
]

Would that also be correct? Do you have an example of how this could be achieved please?