I have been using LIBRE OFFICE here for sometime since retirement and my programs I brought home from work don't work anymore. LIBRE OFFICE dos my DRAWINGs here great... Used to have AUTOCAD LITE from Work...
I don't think LIBRE OFFICE does a MS OUTLOOK type program however for EMAILS...
I am going to be in same boat here when my WIN 7 gets auto updated to WIN 10.0 soon... Will lose my registered MS OFFICE 2007 program when that happens I think....
I still run my XP PRO computer some but always afraid I may get zapped one of these days. I keep all of my FREE ANTI VIRUS programs updated on it.
I had a great setup here after retirement using my two M90 laptops and multi-monitors and other hookups supporting my emergency radio things with home and RV's. All went down the tubes when MS dropped XP SUPPORT...
Roy Ken