I have not received my phone yet, so I can't test, but I started experimenting, and I wanted to warn you that not all Global ROMs are created equal. Unfortunately, the boot.img file extracted from the A.14 ROM differs between RMX3301export_11_A.14_2022041311050164 and RMX3301GDPR_11_A.14_2022041414290143, and only the latter is for the EU market. This not only means that you have to be careful of which ROM you use to extract the boot partition, but also that there's no A.15 EU boot.img currently available, since there's no RMX3301GDPR_11_A.15 download link yet.