Without the AirPlay2 support (Settings/Apple AirPlay and HomeKit) you wont be able to AirPlay to the TV.
You didnt mention what brand/model TV you have or its firmware version - AirPlay support is limited to certain models running OS 9.4+:
https://support.roku.com/article/360057488733
Is my Roku device compatible?
To determine if you can use AirPlay and HomeKit with your Roku device, you need to know the software version and device model. To find this information, go to the home screen and select Settings > System > About.
The Roku devices listed below support streaming with AirPlay 2:
Device Model
Roku TV™ | Axxxx, Cxxxx, CxxGB, 7xxxx |
Roku Streambar™ | 9102 |
Roku Smart Soundbar | 9101, 9100 |
Roku Ultra | 4800, 4670, 4661, 4662, 4660, 4640 |
Roku Premiere | 4630, 4620, 3920 |
Roku Streaming Stick®+ | 3811, 3810 |
To use AirPlay and HomeKit, your compatible Roku device must be running Roku OS 9.4 or higher. Your Roku device checks for an update every 24-36 hours or you can manually check for a software update if necessary.
If your Roku TV is within one of the supported model ranges, you can message @RokuDanny-R and provide him with your Roku account email, brand/model of TV, serial #, device ID (Settings/System/About), and location and he may be able to assist you further.
