Many thanks to you and Sydney.
Very helpful.
Do you have any recommendations for staking BTC, ETH or SOL please? I don't think you can stake BTC, but it may be worthwhile for the others as they are medium - long term holdings.
There are always options. I think even with bitcoin you can earn a couple of % using savings on the binance chain. Of the three SOL looks relatively straightforward you need to get a soft wallet. ETH my advice just sit on it wait for it to go up and then get rid. Gas fees you have to pay on transactions are EXTORTIONATE. You can pay asked to pay £300+ to move the equivalent of £20. Be very careful the equivalent gas fees on other networks are often pennies. ETH2 might bring the gas fees down to sensible levels, if they haven't bled everyone dry by then.
My staking is across a number of networks. Anything on binance smart chain is quick and cheap.You can use the metamask wallet just like for ethereum, you just need to have a bit of knowledge on smart contract addresses. I also have a number of Atom based wallets and assets including a load of stuff on Luna, FETCH.AI and Oraichain.
I have tried Polkadot for me it was like the Hotel California. The process was confusing and getting your money out was a slog. Everything worked and they have some really exciting things happening right now, but not for me.
I haven't tried avalanche and polygon both of which I want to get a better understanding of.