1.
if your wife NEEDS that application for work then
if you MUST use it you can see if it runs in wine:
https://www.winehq.org/download/
but i hope her employer will let her use a alternate method to connect to
work
if not then there may be pepole on this fourm who know more about that
application than me and i reccomend asking before you install a unethical
program.
2.
there are many good libre software games here is a post i made listing some:
https://trisquel.info/en/forum/wa-can-change-not-one-day#comment-62064
non-libre dos games normally are less harmfull than programs like adobe flash
but still unethical
but you may find some libre dos games for example doom is now licensed under
the gpl the levels are still proprietry though so freedoom was made:
https://freedoom.github.io/
if your kids play flash games then the chances are they will have to play the
libre games avalible:
http://directory.fsf.org/wiki/Category/Game
but i relise giving up games is not always a easy thing :(
*cries*...
3.
thats not something i know too much about i reccomend starting a form topic
dedicated to the question
