The last months i invest a lot in Defi's and i haven't experienced any rugpul or scam. I don't know if i am lucky, or because i do a research before i enter a project.
I check TVL sums, rugdoc review, community members etc.
I am thinking of a new strategy now: to invest in a project after it was hit by a hack. The token price would be in big dip and you can profit in the future if the team behind it, respond properly. I haven't done it yet, but i think i will try.