Yes in Italy on this front we are very lucky, if you don't need the 5G network and you just need the more common 4G network you can look at many offers for less than 10€ with on average 30 to 100GB per month..
That's right we have 5 main mobile networks (TIM, Vodafone, Wintre, Iliad and Fastweb) and various MVNOs including 3 companies owned by 3 of these ISPs (Kena, HO Mobile and Wery) and they also have a lower network priority and speed limited to 30/60Mbps...after that there are several other MVNOs
Personally I'm with Ho Mobile (Vodafone MVNO) after years of main operators and honestly I've never felt the lower priority even on sensitive areas during some emergency...the only one in my case is speed limited to 30Mbps, but there it depends on where it is used in big cities you can have a greater impact but in areas outside or in the countryside where there will be a slower speed the limit is not felt...