To add RSS Feed to Squarespace, you can follow these steps.
#1. First, get your RSS Feed URL.
In my example, I will use this Feed URL:
https://www.apteekki.fi/terveydeksi/uutiset.rss
#2. Next, access this RSS Feed tool > Click Create a widget for free > Then enter your RSS Feed URL. It will show a preview on right side
You can choose layout, adjust style, options here
#3. Click Publish on top right
#4. Choose Free Plan > Click RSS Feed Embed Code
#5. Edit page where you want to add RSS Feed > Add a Code Block
#6. Paste RSS Feed Embed code
#7. Save & See Result
