Have you tried these RS ones out in real life?
These are mine at home...Cat 6A anything (cable, jacks etc) just needs space:
Twin outlets and
quad outlets (Commscope GigaSpeed XL Cat 6a going into MK Electric ‘Edge’ stainless faceplate with
black shutters. These are pretty much
flush fitting with almost no protrusion.
The back boxes we’ve used are
35mm deep metal. You will see the jack depth here is pretty much 30mm. Using an angled jack or shutter may reduce the depth needed ever so slightly.
Depending on how many the OP has to rectify, it may be easier and cheaper (especially on plasterboard walls) to just get replace with deeper back boxes, rather than whole new jacks + faceplates etc.