Index.mapping.total_fields.limit for multiple indices in an elasticsearch cluster

How does index.mapping.total_field.limit works with multiple indices in an elasticsearch cluster?

Let's say if I need to increase the index.mapping.total_field.limit from the default 1000 to 2000 then will it be better to split the indices into two (in the same elasticsearch cluster) with each having index.mapping.total_field.limit set to the default 1000.

Elasticsearch Version - 7.7.1

That setting applies per index, so you can have (eg) 2 indices with less than the limit, 2 with 2000, 1 with 3000 etc.