I have this issue too. Been an off-on ambulatory wheelchair user and just accepted my watch would give me any credit for walking/standing.
If this is a business phone then probably nothing you can do, if this is a personal phone you use for business maybe ask for a business phone so you don’t have to deal with this.
Only if you can’t fix something do you do a hard wipe. No need to reset every 6 months. Why would Apple design a phone that has to be reset so often?