The 'burger' option to sort portfolio by name/value seems to have been removed (from the web view, not the app)

Also, would be a nice feature to add a ā€˜sort by daily gains percentage’ to the sort, if it ever comes back!

The option to filter your investments hasn’t been removed. You can access it from the Portfolio tab by tapping the gear icon in the top-right corner. From there, you can reorder sections and sort investments by name, value, gain/loss, or investment date.