Replacement hinges. Normally the Parts People have these but they are not in stock as of right now.

https://www.parts-people.com/index.php?action=category&id=145&subid=903&refine=hinge

so...

https://www.ebay.com/p/Original-for-Dell-Vostro-15-5000-5568-V5568-Hinges-R-L-025k0r-01j2rw/28019224782

And how to replace the hinges.

https://www.dell.com/support/manuals/us/en/04/vostro-15-5568-laptop/vos5568/removing-the-display-panel-hinges?guid=guid-2c7435dc-8dda-483b-ad96-46e18fc68b88&lang=en-us

I wonder if the suggested hinge replacement has the same excessive tension issue. Here is another solution: https://www.amazon.com/AES-Industries-Mini-Panel-Clamp/dp/B00AZA5C7Q Simon

I just said "screw it" (literally) and now drill the palmrest and through-bolt the hinge screws.  With the right screw heads and countersunk a bit, it actually doesn't look bad and there's no interference with the screen when closed.