IIRC, OpenOffice is now LibreOffice, tho I’m not sure how that came to be. In any case, the product development continues, it reads, edits, and writes native MS Office files, and the price is right as rain.
Ubuntu comes with LibreOffice, Firefox, and the Thunderbird email client.
My own dive into Linux... I probably wouldn’t have been so bold if the laptop had been my only one. Since it was not the only available machine, I went ahead. And I WIPED it; no “dual boot” configuration. I wrote the Linux O/S right over the top of everything.
I believe LO and OO are pretty much the same program, by Apache, and yes, the price is right, which is why I use it instead of Word! Free upgrades!
I had Firefox, and it was a disaster. I think I used it six months before I went back to Win 10, and as much as I hate the latter, the former was SO much worse!
So Linux is the next step and when the day comes that I may need a new laptop, I’ll make sure that Linux is the OS.