You can customise what appears on your timeline using Mastodon's Filters feature. It lets you automatically hide posts containing certain words, phrases, hashtags, links or emoji. This guide explains how to use Mastodon filters and answers lots of common questions:
➡️ https://fedi.tips/filtering-your-timeline-to-hide-posts-on-mastodon
Filtered posts can be either hidden completely, or hidden behind a warning that can be clicked open.
Filters give you the ability to hide whatever you don't want to see, from NSFW to Wordle.