what would be the bandwidth needed per peer if there was 100 000 transactions between each block generation please?

a block is generated every ~10min, so all peers must get the 100 000 transactions in less than 10minutes ?

if each transaction is ~1ko, that mean 100Mo every 10min, ~165ko/s ? isn't it a bit much ?

hi, what would happen if someone sends millions of 0.00000001 BC to millions of address please ?

=> all of the networks peers must store all transactions ?
=> are each 0.00000001 owner/hash stocked in blocks on all peers?

i don't really understand how bitcoin handle fractions of bc