8 – Migrate taxonomy conditions only if the target does not have the term name

Is it possible to migrate taxonomy terms by checking that the name of the source term matches the name of the target term.

I want to skip the migration if the term exists in destination.
I tried it with the entity_lookup plugin, but it generates new expressions.
Here is the current approach that is not for

to process:
Surname:
-
Plugin: entity_lookup
Source: uuid
value_key: uuid
bundle_key: vid
Bundle: my_bundle
entity_type: taxonomy_term
Description: Description
vid:
-
Plugin: protocol

An example would be great.
Many Thanks.