I work for a financial institution, so not quite government but still super restrictive as far as what we can use and security requirements. I am in the same boat, looking for alternative video editing software. We currently use Adobe, but it is way more than what I actually need for editing purposes. Video editor friends have said DaVinci Resolve is awesome, offering pretty much what Adobe does, without the pricetag. If you primarily develop from screen recordings, Camtasia seems to be one of the most recommended for recording and editing. They do pass the security checks, for financial institutions at least, so maybe you can get it approved at the county level. Finally, if you ever used Canva, Adobe Express is basically just Canva but with the Adobe brand name on it. It has a free version and can do some basic video and sound editing. It doesn't always play nice with the combination of hardware, firewall blocks, and taxed network I have available to me on my computer, but when I use my phone for editing on the go, it works really well. It's quick and easy. What I create is not shared (unlike with Canva). Adobe as a huge library of stock assets you can use, but I swear they nickel and dime you for every teeny tiny thing. So I get my stock assets (narration tracks, sound, video, photos, MOGRTs...) elsewhere and just upload them to my projects in Express. There's probably more streamlined ways to accomplish what I am creating, but I have spent the last year trying to just work with what I have available and with what I can get ok'd by our IT security team.