Since OP asks for "thoughts", here is mine.
I find it humorous that OP:
1. Started tracking this via teslafi on 12/13 with 245 miles on the car, making it a fairly decent assumption that delivery of the car happened not too long before that, and
2. OP has driven less than 1k miles total
And still is somehow concerned that he has battery "degradation".
Im going to use an Audio Visual product analogy here. Most of what people are seeing is like people being concerned with "Burn in" on their TV, and calling image retention, "Burn in". They look the same, but Image retention on a TV goes away eventually, while "Burn In" is there permanently, which is why its called "burn" in. This is the phenomenon of having a static image (like a TV station logo, or espn ticker) being visible when you change the channel to a different station.
Why am I saying this is similar?
Because tons and tons (and tons and tons and tons and tons) of people here are confusing "degradation" (which is the permanent loss of battery capacity) with BMS calculation losses. If someones battery has "degraded" with less than 1k miles, then there is a real problem with the battery.. but one is not going to see that from a loss reported by teslafi, and tesla is NOT going to accept any statement such that "Teslafi (or stats, or any other third party tool) shows I have......."
Those tools are mistakes for most new owners, because they just induce fear for many... not all, but many. Its my opinion that the data should be gathered, but not even paid attention to for the first 6-8 weeks of ownership, if one is into gathering all that data. By that time, you can look at trends, etc. Worrying about 1 day that shows a lower max range (without even driving that range to find out), is just stress for no reason.
Since Op asked for "thoughts", those are mine, which I am sure are not likely popular.