I recorded a mtg on my Zoom account and want to give this recording to another to manage and share with others instead of it remaining in my zoom account.

How may I transfer the already recorded mtg video to another so she (my assistant) can share with others but they not return to my zoom account to see it?

Thanks for your wisdom. 

I use Zoom client for Linux, version 5.5.4 (7938.0228) on a Ubuntu 20.04 distribution.

Since yesterday the screen sharing doesn't allow me to share a single window anymore: the only options are sharing the whole screen or sharing the whiteboard, and in the advanced options: sharing a part of the screen. I used to share a single window (my presentation) and I found this very comfortable. Any help will be appreciated, I haven't found any similar post on the forum. Thanks in advance. 

I'm getting lag every 2-3 minutes for about 15-20 seconds.

I'm on a Desktop PC which is powerful.

I'm not on Wifi, I'm directly attached to the network.

Speedtests are all super fast (gigabit ethernet, fast upload and download, latency is low teens)

I use the desktop app not through the browser.

All other services seem fast - Teams, Gotomeeting, VoIP phone, Discord all work no problems.

I'd like to try some more advanced troubleshooting (I own an IT Services business)

Are there any servers I could tracert to and test the connection over several minutes for packet loss along the route?

私は大学講師をしております。

ブレイクアウトルームを使用し、１５０名程度の講座で、一組３名、計５０組に振り分け「すべてのルームを開く」ボタンを押すのですが、そのボタンを押した以降、ブレイクアウトルームが作動しなくいことが２回続いています。
ブレイクアウトルームの設定は何度も確認しておりますが、特に問題が見当たりません。
生徒同士が交流でき、意見交換できるグループワークを中心とした講座展開を大切にしているため、大変困っており、原因などがわかる方がいましたら、ぜひ教えていただきたく思います。