CFD sizing with higher leverage: How do you adjust?

Still getting my head around CFD trading, specifically with how the leverage affects position sizing. When trading a highly volatile asset like an index CFD or even some commodity CFDs, the higher leverage available compared to spot or futures means my 'standard' sizing strategy feels off. Do you generally just reduce your notional exposure drastically, or is there a different way you think about risk per trade when leverage can be 20x or more? Struggling to translate my usual risk-per-trade rules directly.