You have to be pretty wealthy before you need to worry about being taxed from your estate on gifts, and then only if you fail to live seven years after the giving (there's a taper). If your assets are below the IHT threshold, you have no problems no matter how much you give, and if you're married your threshold is double. After my parents died within the last few years I found most online advice on this to be opaque and unhelpful..

You probably didn't look at the HMRC advice, which appears to be both clear and explicit. Any other 'advice' is based on the HMRC instructions, but may lose something in translation.