I kind held off buying another one for a while hoping for the "Pro"; I think it'll be next year now if anything; sales don't seem to be slowing down for the current & OLED models and the chip shortage isn't going to support another big platform launch (heck we still can't get Xbox/PS5 regularly!)
I agree - if it wasn't for the silicon shortage and pandemic I think a Switch Pro would have been announced last year. When it does eventually arrive it will feature the OLED screen, kick-stand and upgraded audio capabilities of the latest Switch model ( which I'm confident were initially intended for the Switch Pro ). As you say, though, there isn't any rush for Nintendo to release new hardware as the platform continues to have strong sales.