Remote or not, you typically have to trust employees to not leak your source. Most SaaS companies don't have an issue with employees trying to sell trade secret

Remote or not, you typically have to trust employees to not leak your source. Most SaaS companies don't have an issue with employees trying to sell trade secrets to competitors, so they don't need strict controls. Code exfiltration for trusted employees is as easy as an SCP, an email, whatever. Very few companies have extreme controls around these sorts of thing. That said, typically remote-only companies will send you a laptop specifically for work that they have control over.