A:AnswerYes, both do work. Though it may be best to replace the remote with a similar or exact copy bluetooth remote (especially from Insignia), I've found that a multi-device universal infrared remote from Phillips (it doesn't have to be this specific brand) will do just fine, although the Alexa voice function will not be available unlike on the bluetooth replacement.
A:AnswerYes, it can, as long as your laptop or CPU tower has a dedicated hdmi port or has casting capablities will you be able to use it as a computer monitor. You can even run a wireless mouse and keyboard set from the tv to work it. Sadly, no, this TV does not have word processing capabilities unless you use Microsoft Word or Google Docs on the internet app. Not saying you should try.
A:AnswerIt's obviously designed not to do that and if you were it it would compromise the audio quality as the speakers are close to the bottom of the bezel