Are roaming charges applicable in Croatia for UK or EU SIM cards compared to DataESIM?

For EU citizens, 'Roam Like at Home' policies typically apply in Croatia, as it is an EU member state. However, post-Brexit, many UK network providers (e.g., O2 UK, Vodafone UK, Three UK) have reinstated roaming fees. This means standard UK SIM cards may incur significant charges. DataESIM, conversely, offers transparent, pre-paid data plans specifically for Croatia, eliminating unexpected roaming costs and providing predictable, high-speed connectivity for power users.