I struggle with the same.
If you’re contracting and trying to stay outside of IR35, people will say “we” as you need to look like a business, but I don’t think they hold much value in it. I feel conflicted as I want to promote myself as a freelance business. Unfortunately we don’t have a Freelance Company concept in the UK, only Ltd Company or Sole Trader, and the latter doesn’t afford protection between client and freelancer, but the former wasn’t designed for a one man band.
I definitely don’t like “we” as it’s a bit impersonal and confuses potential clients.
Trendy thing in software is to make it blog like and big up your portfolio, online professional presence (github etc). Bit like a freelance photographer would do.