So it shows your positions in the tab that day, ‘Your Positions’ you can add or remove your liquidity at anytime. It also shows your estimated daily rewards per pool and the percentage of the pool you are holding.
The ones that say the rewards end means that those are Hive Engine distribution contracts. They are renewable contracts and most people tend to renew them. I look for the longer payouts, like with the LIST/HIVE and WEED/HIVE pools for example, those are both distributing for 5 years before we have to renew them. Some like the BEE ones are for a year, and then the PIZZA ones are more short term and all over the place, lol.
The BXT rewards from what I can see do not have a time frame on them. They are constant rewards from my understanding.