Hi,
I'm having basically the same problem as this user, who has received no answers: Solution-aware flow does not appear in SharePoint ... - Power Platform Community (microsoft.com)
Originally, I had a non-solution flow with a 'For a selected item' SharePoint trigger that was working well with one of my SharePoint lists. Any time you were to select an item, the flow would appear under the Automate tab, with the name "Approve SharePoint items":

This flow was in my company's default environment and not inside any solution. It was just one of the flows you see in Power Automate under My flows.
Since then, I have recreated this flow inside a solution and inside a new environment (different from the default environment). When creating the trigger and adding the site address, it recognizes the SharePoint list in the list name dropdown. However, when I go to my list, this new flow does not appear in the Automate tab, even when selecting an item.
If I click on the Automate tab > Power Automate > See my flows, it takes me to the new environment's 'My Flows' page, which is of course empty, since this new flow is inside a solution. I have a feeling the Automate tab on SharePoint can't see flows that are created inside a solution (or maybe that are created in a non-default environment?).
For what it's worth, inside the solution I did the whole 'Add required components' for my flow and the SharePoint connection was added to the solution, but still nothing when I go back to my list. Is there any way to get this solution-aware flow to show up on this SharePoint list?
Thanks