My second phone has 15 mb per second of net speed,but in m52 in same aria .... youtube is buffering ‍️, what can i do now

In f15 5g phone......when I click on pdf ...the pdf are not open in any apps....like drive and nots ....Open pdf manual ...like select and go option and open with ....and select the option...Direct one click...pdf not open ...Show this error .....How...

Adding Nearby Share in quick share seems to have caused more connection problems. It's taking a lot of time to establish connections now.Even Samsung to Samsung connections aren't working properly. I don't know what to do with other phones now.

Apko Kya lagta Hai......quick share main nearby share add Kar ne se connection problem jyada ho gya ho Asa lagta Hai....apka Kya kehna .Bahut jyada connection time lag rha Hai ab ....Samsung to Samsung bhi connect thik se nae ho rha Hai.....dusre pho...

Ye icon Kya show karta Hai......or ise off kese kare ....?