At the moment, the GrowthExperiments extension uses the words "recommend" and "suggest" and their derivatives somewhat inconsistently.
"Recommend" is supposed to be said about something that the user should do. A user is supposed to have a good reason not to do it. For example, it makes sense to recommend adding an email address while signing up for an account.
"Suggest" is supposed to be said about things where the user has wider space to ponder and decide. So, an algorithm suggests adding a link, but this suggestion may be wrong, and the user is supposed to decide.
Some GrowthExperiments messages already use "suggest" about link suggestions, but some messages say "recommend". This should be consistent.
Here's a suggested patch to address this:
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/GrowthExperiments/+/682248/1/i18n/homepage/en.json