Multiple-selection dropdown filter on repeaters

Hello! I have a dataset that represents a list of services. One of my columns is about features included in each service. Each of my services can have multiple features. I would like to create a dropdown field where I can select multiple features and filter my repeater based on that selection. I tried to use a filter on the dataset, but that just gives me a single-selection dropdown, which is not good enough for what I need. If anyone has any tips, I would appreciate that! Thanks in advance!

the Checkbox Dropdown example should be helpful.