IMO Brisa Lite Smoothing gel is the best product to use to secure Swarovskis. finish your service as normal, add a dab of the gel when you want to place your gems, embed the gems, cure and wipe with IPA . It is da bomb!
RescueRXx contains conditioning oils but also keratin protein ..which is what is different and what is repairing damaged nails .
If you use RescueRXx over CND shellac for instance you will ...yes...get penetration of some of the ingredients ..namely the oils but the repairing keratin proteins...
Talk to your employer..There's no point feeling aggrieved but saying nothing..Iron things out with her and if and when you are asked to do something extra outside of your paid working hours ...straighten it out before you do it