I want the old share option back!

I want the old share option back!!!!! for me to be useless is the "share for revision" option; moreover, since photoshop, lightroom classic e lightroom are part of the same ecosystem, why they don't offer the same functions of sharing?

And last but non least, why is not possible to switch from Photoshop to LRC or from LR to Photoshop without close the file and open the app?