laptop not responding after 3/2018 Windows 10 updates

If it were I, with the new Feature Release on the near horizon, I would leave things, as is and go no further than trying to make sure all programs work satisfactorily and that your personal files are backed up. Maybe test Chrome in a few days. Even if you do a clean install, unless your partitions are completely messed up, which I highly doubt, the 1803 upgrade will rewrite the OS anyway.
Watch the News section for when the ISO will be available, download it with a new MCT and run it just like you did for Repair Install.
Here's an article with a chart on the new installation process (using ISO will do all of it offline) - https://www.bleepingcomputer.com/new...in-30-minutes/

I think you are right. Thank you so much.

To be honest, I was a Chrome lover for sure, but this Firefox has been working so well, so fast, that I might just stick with it.

Firefox is my default browser. Better selection of add-ons and I have so many bookmarks in folders and sub-folders that I HATE how many clicks it takes Chrome to scroll to find bookmarks since you can't pin the list to the side, like in Firefox, and they close right after you click. The new switch in the upper L corner to pin and unpin the bookmarks is great, as is the account sync to use on other devices without recreating bookmarks and extensions.

I didn't even know about pinning those bookmarks on the left side. Thanks! That's pretty neat. For now, I've decided to stay with FF because it is so fast and smooth, like Chrome used to be.

Here's an interesting newsletter, and I trust this source.
Just Walk Away Renee Cloudeight InfoAve