Not in my case My old remote is a Chinese IR MCE copy which worked OK with my old x86 based setup. Basically doesn't work (almost) at all with my new shiny RPi4 system. Pause seems to work if I press it long enough, the other buttons don't do anything.
Are there any IR remotes you can recommend which are 'plug and play' on a LE RPi setup?
As chewitt says - a Flirc is often a great solution. It's a USB IR receiver only that you can use with almost any IR remote you already own (including your Chinese MCE remote - the FLIRC would just replace the IR receiver for that remote). You program the FLIRC on a PC or Mac and then plug it into the USB port on any Kodi device you like. The programmability of the FLIRC means you can teach it the IR codes from any remote you own pretty much, and definite what key press each IR command is associated with. It has pre-defined layouts for MCE etc but you can program pretty much any USB HID command with it.
Flirc also has nice functionality like separate Long Press configs (outside of Kodi) and the ability to define Macros.