Bitcoin staking can be another holding/investment strategy for idle coins or upcoming traders. It can be done in two ways. Flexible and fixed. The flexible staking is one that can be unstaked at any time. While the fixed is staked for a shorter period but must be redeemed for it to be unstaked. This means that in flexible as the word implies, it is not rigid and you can terminate the staking any time you want but fixed is a rigid one that cannot be terminated and must reach the timeline of the staking. The rewards in staking is earnings. For freshers and even professional traders, staking appears to be a very viable investment opportunity for profits. The fixed staking has higher APR while and cannot be unstaked until the maturity/redemption time. While the APR for flexible is lower and can be terminated at any time.
Staking and earning is good for idle funds/coins and can really help upcoming traders that are always busy with other works or activities.
Well I've not been able to try the staking to earn strategies but I was convinced sometime ago to give a try that it's profitable and mostly help beginners traders who tend to have something while they are at what they do, so with that I believe it's a good investment strategy one can try on and be profitable in the long run. As you rightly said it can be done in a shorter or longer period depending on what you want.