It really depends on what/where you plan to ride it.
Yes it will be outclassed by most similar modern bikes, but unless you’re doing bike park trips every weekend then for 90% of riding it’ll still be good enough.
I imagine the biggest weakness will be the shock and forks. If you replace them with more modern ones it should still ride well. Speaking as some one who has been riding various Orange full suss bikes since 2005.
Just to echo what others have said, yes, it should be fine, it is still a mountain bike, even 20yrs later, so will handle most things, though these days certain man made trails are more rideable on more modern or purpose designed bikes but even those are within reach of a half decent mountain bike if you so desire. The shocks are worth checking though, you can still get them serviced if they need it and will work fine and still be capable.