I recommend this "case friendly" 9H Tempered Glass Screen Protector for Nothing Phone (2a), there is no need to doubt it's quality and fit.
It is just large enough to entirely cover the displays viewing area; it reaches to just pass the inner edges of the bezels (I had a "case friendly" protector on my Nokia 6.1 and the edges were on the screen making it hard to tap some 'links' or 'buttons').
Sadly, and a little annoyingly, I didn't notice a speck jump and the protector as I placed it on the screen . . . I wasted my money as I could not rectify the problem and made it worse! This issue was entirely my fault and has NO bearing on the product, I only mention it so I can HIGHLIGHT how good this product is; even with the mess I made of installing the screen protector, THE TOUCH REMAINED SENSITIVE, I HAVEN'T NOTICED ANY HESITATION OF RESPONSE while tapping, scrolling, or unlocking via the finger sensor.
A high quality product from Gadgets 4 Geeks that I recommend, and would buy again.
I thank you Gadgets 4 Geeks for providing products for a new 'out of the main stream' phone, well done! I greatly appreciate it.