Exactly. Just like any other kind of proselytizing, it’s better to just live by example and answer questions as they come. For example:
personal finance - manage finances properly, and people will notice that you’re not stressed about money
religion/philosophy - live a worthwhile life and demonstrate the value it brings to your life
products - use them and mention them when relevant (e.g. my coworker loves their Remarkable and shills it at every opportunity)
People aren’t going to change their behavior because you’re pushing something on them, they’ll change their behavior if they see something they want more than what they have. I think more people should self-host, but I don’t get anything from others switching, nor do I have much control over them deciding to switch.