(old ground, but even for tesla too)
the, "will the charger be available ?", has to a be a concern, the journey I listed earlier with a 30&35 minute stop, going north on A1(M) friday evening, with return on sunday evening
with just one ccs and one chadmo, apparently, at shell station route selector gave https://www.zap-map.com/pts/sr7nv4c/
what are the odd's you have to wait, and, your recharge will not, then, take an hour ?
do you arrive assess how long it might take, and search a contingency if necessary
Which specific journey are you referring to? Would there not be a Tesla Supercharger en-route or with just a slight detour? Your concerns are correct for most EVs, the fact there's only 1 or 2 compatible plugs that may be occupied or out of service is frustrating. You do sometimes need a 'plan B' and it is wise to try not to cut things too fine in terms of remaining range when you arrive at a charger. Just in case you need to go somewhere else instead. For Teslas there's nearly always a Supercharger en-route or with a slight detour. Many of them have 6+ points available and the in-car app makes it very clear how many stalls are available vs. occupied and will route you to them.

