Hi all I have a few questions, I'm looking to move from Vivaldi to Opera for stability reasons. Vivaldi can sometimes cause my entire windows OS to slow down to halt. (I know its Vivaldi because if I quit it then Windows becomes snappy responsive again instead of painfully slow - and I'm not near my RAM usage limit either when it happens)

is there anything superior - e.g. speed about opera's built in ad blocker vs an extension like ad guard? or is it essentially just an extension as well, so playing by the same rules?

how can I open web pages in the sidebar?