Is subwoofer included with the soundbar?

Does anybody know if the Sony HT-A5000 (121mm wide spec) fits between the standard feet of a Sony XR-55A95L (120mm visually)? Is it worth adding such a soundbar for casual listening (I also have a full size Home Cinema)? Any lips-sync issue to be expected with an optical connection? When using the home cinema I would switch off entirely the « TV speakers » setting and expect the HT-A5000 not to come into (sound-) play (hopefully..) if correct?

Can anyone confirm whether you can use an HDMI switch to connect multiple devices to the HDMI input of this soundbar? Sony support says this is not possible because the soundbar is not an amplifier. I would have to buy an additional Atmos amplifier to be able to connect multiple devices. Sounds illogical to me. How does the soundbar know that there is a switch between it and the device (if it is an 8k@60Hz or 4k@120Hz switch)? I use a Sony projector that only has two HDMI inputs, so eARC via TV is not an option for me.

Hello Is a Sony SA-WCT790 Active Wireless Subwoofer and the Sony SRS-ZR5 wireless speakers compatible with the Sony HT-A500? Since my Sony HT-CT790 soundbar is broken and no longer works, the HT-A500 could be a good solution to get my sound system back on track. Many thanks for the answers