In most of South America people run their kitchen stoves on the small propane tanks (like those used in the US for barbecue grills). I have a 5-burner stove with double oven and "afterburner" (for cooking on a wok).
Regulators are only available in "small and cheap"- no bigger diameter I have seen unless you get those huge tanks.
Still, the only time I have had problems with flow is when the burners themselves need a cleanout (needs to be done regularly) or there is some sort of leak in the system. We also replace the regulators and hoses regularly- the hoses for safety purposes and the regulators due to humidity, oxidation, fouling, etc. You're supposed to replace it every year, I think we maybe do it every 3 (and it's overdue, thanks for the reminder).
We DO notice problems with variations in gas quality, especially now amid The Great Supply Chain Problems of 2021 (probably also resulting in crud on regulator/burners), and of
course if the pressure isn't what it should be we go and doublecheck the clamps on the hoses, connections, etc. Our piping system goes maybe 6 meters from the tank to the stove, but again, flow/pressure doesn't seem to be a problem.