Tweaks are made via software during maintenance campaigns. All MY20 / MY21 will have had theirs and the new one mentioned for the introduction of the GTS may well appear also.
To get a good idea of what to expect use the range calculate on the Porsche website.
Max (UK) you can hope for when conditions permit will be around 280 miles (performance battery plus) and at this time of year around 220 miles at 100% charge (which is not recommended). So 210 miles tops during Winter / cold months is the best average you can hope for at the 100% charge level and 185 miles at the recommended 85%.
These numbers are all before you 'turn a wheel' and switch the AC / heater on.