I don't even think we need more fixed fielding spots but a bit more control over how close or far they are. Nothing more frustrating than bowling good balls that fall short of your slips even though you've moved them close. In real life they'd obviously just take a step forward so more control there would be nice.
On a different note, I was travelling for 2 weeks and took my Switch that had Cricket 19 and I can confidently say that tests are MUCH better than in 22. I got so many more forms of dismissals, the fielding wasn't infuriating, and the AI actually bowled to their fields.