Are Bots in BR now?

Respawn has added NPC's / Bots to the casual playlist, though this should only affect low-tier lobbies.
They mentioned this in a update post back in February:

We’ve slowly been introducing a small and deliberate amount of npc bots, “Apex Bots,” into lower-tier public lobbies. These bots only deploy as opponents and will be a full squad; your squad will not be filled. We want players to have fun playing Apex, and we see this as a potential path to deliver more of that, but we didn’t want to just drop them on you.

Not sure if these bots are identifiable in the same way the bots are named in Bot Royale (With numbers in their name and  all that)
Though keep in mind that in some cases, players run bot farms, in which case there are people are running bots themselves to farm XP (Or in some cases, used for boosting), so it's also possible you are encountering such bots if you're playing on a server where there aren't a lot of players online at the moment.