So I came across the following post on Filter a list view using URL parameters, which is sort of what I was looking for but not at all at the same time.
I have a custom DataTable on a SharePoint Web Part Page that is very complex and already has certain custom filters applied to limit what the user can see based on the group they are in (if they are a Task Assigner, they can see everything. If they are an Assignee, they can only see items that include their name). I was able to do this and apply to the filter by using SPServices, to get the current user title and match it to the items in the table.
I forgot to include this in my first part of the post, but I need to append it dynamically as it is a flow, not me sending out an email. At the bottom of my workflow there is a link to the page, would I be able to dynamically add the parameter to the URL in Designer, or even Power Automate if I switch to that?