Any ways to fix slow powerline adapters? ( slower Wi-Fi speed then phone )?

So I just got the 300 megabits fiber internet installed few hours ago and it did work perfectly with high speed. It was good in my TV, tablets and iPhone but the only device that shockingly got low internet speed is my PC with a LAN cable connected (powerline adapter). It only gave me about 5.04 megabits yet it is still a wired conenction. I tried to made it connect the 5ghz Wi-Fi but the LAN name is under the 2.4ghz ones. Any idea how to make it connect to a 5ghz internet or fix the issue?

Does my brother see all the apps I download?

So my family all have an iPhone. My brother was saying one day that he automatically gets all the apps we download since he's the one in charge of it. I wanted to download tinder but I'm scared he will know. Basically in my family, we're not suppose to date or go out and I just wanna see it for fun. I have my own apple app account while everyone else is under my brothers. So will he see my app or no?

Trying to find good wireless earphones for basketball and recreational see template?

Budget - 200$ max but i wouldn't stretch it there
Source- an iPhone 7
Requirements for Isolation - An adequate amount of isolation will be good. I will be using this outside and in indoor basketball courts maybe a little bit on buses and a lot in cars too.
Will you be using these Headphones in Public? Yes
Preferred Type of Headphone - buds
Preferred tonal balance - Balanced but I love some bass
Past headphones - original beats and apple generics they were fine but didn't feel good and couldn't use to workout well with my phone and style.
Preferred Music - hip hop/rap (lil uzi, lil xan etc)
More bass and isolation than the apple headphones and wireless
Location - USA

What do i do if i buy a new phone?

Soon I'm planning on buying a new Iphone 6 on Amazon.com. It is also going to be GSM unlocked. So let's say I do buy this phone, what would I do next when it comes in the mail? How would I hook it up to my carrier? (verizon) Can I even hook it up to my carrier? I'm just wondering if it's possible or not possible, and if it is what do i do?
Thank you to anyone who genuinely responds.
(ill reward best answer…)

IPhone X for 7 year old niece ok or no?

I bought my 7/8 year old niece and iPhone X and my fiancé is fuming. She says that's ridiculous and I should take it back. We both make good money and don't have joint accounts yet.