Steam deck is making my SD card the default drive after every restart even when I select the Internal drive as default. Any ideas on why?

For folks that have a game on PS5 and use remote play, do you find that sufficient or do you end up getting a copy on Steam as well. Is it game dependent?

Is there any issue with me swapping the 512ssd for 2tb right off the bat without turning on the device for the first time? I’ll have the recovery disk setup on a thumb drive and all that prior.