Tire size conundrum

Hi,

Earlier this year I bought a 2026 Octavia IV RS Combi, and it came with 225/45 r18 summer tires.
It's this time of year that I have to start thinking about getting a winter setup.
I've noticed that even current gen Golf's use 225/40 R18 tire size, and quite a lot other cars do as well.
I've also noticed that 225/40 R18 size has much more new premium tire models available (like Michelin CrossClimate3 Sport, or Goodyear Vector All Seasons 4),
while they're not available in 225/45 R18 size. And interesting tires that are available in both sizes, like Pirelli SF3 are exactly 50% more expensive in the 45 profile compared to 40 profile.

Needless to say, I see a lot of benefits of going with th 225/40 R18 for my winter tires setup, but that will give me over 3% smaller wheel diameter.
Therefore does anyone know if that will work?
Won't abs/esp go crazy?
Is it possible to modify the wheel diameter in the car computer using a new OBD Eleven interface perhaps?