For bedroom use there are a lot of options. For serious gigging get your signature sound ( try a few loud amps ) and a pedal board.
I am very intrigued with the Mustang indeed. I really like this Boss amp:
https://www.youtube.com/watch?v=dPcneYWbhZY&t=129s
I am old, 62, so I am stuck happily in the tube, Fender flavor, sound that sounds good @ bedroom volumes. I have a Tone King Meteor 20 and a vintage Fender PR (Silverface). I like warm, Multidimensional, darker amps.
I wish I could do the Soldano 100, or a real AC 30 VOX , or... so many gig level, insane tones. There should be an amp website for renting for a few months.
I also play plugins and cab stuff with my Apogee/Abelton capture computer.
But I am tempted to try the BOSS type amp. I could sell a lot of pedals and amps go on a vacation and not miss much tone wise these days.