This is the link it turns into when I get the text:
https://u3416961.ct.sendgrid.net/wf/click?upn=lG8ZAzqsjNqwjMZzzVZJr0s6RUkFxRGSarps7hPDJbURaurPDuvDskVhX4XlKNIr_X-2BsizN87Y1qLNrkEpsQclvTS4uiAXwy2rOjmJRO4NmrD
you need to turn off "Click tracking" in send-grid its one of the settings
https://app.sendgrid.com/settings/tracking
And make sure Enable click tracking in plain text emails is turned off