I still do that and never did it any differently. Mainly to conserve energy, since my parental household was poor and we actually could not afford to leave appliances running when not in use. This became a habit and now I've been incidentally preventing data harvesting for years. I do need to get an old 90s alarm clock though, since I cannot always turn off my phone at night when I have plans in the morning. Also GrapheneOS.

Cellphones do this same thing though.