There is no such thing as a raw V-log picture. Raw is always the raw sensor data that still has to be interpreted by a raw converter. V-log is a in-camera profile that can get used to generate a jpeg preview. What you first see when you open is the embedded jpeg preview (every raw file has an embedded jpeg preview) which has the v-log profile applied to the jpeg by the camera. A little later you will see the actual raw data as interpreted using Lightroom's standard profile. This is just the nature of raw conversion. You can change the profile in Lightroom classic's develop module but it usually does not have video specific profiles which is really only useful for video as you always have to work with compressed low bitdepth files. Raw does not have that problem and there is absolutely no point to using log-profiles like you need to do in video. Of course if you are preparing stills for inclusion in video and want to be able to use the same grading tools as for your video material it might make sense but normally there is no point.
That said, it is possible that if you use the preset "Camera Settings" (or change the default for this camera to camera settings) that Classic will automatically approximate the look of the v-log profile instead of use its default settings.
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